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There’s a moment most IT leads know too well: that point in the day when the tools meant to streamline your work actually start getting in the way. A missed call here. A dropped video meeting there. Four different apps open for what should’ve been one conversation. You start thinking, “There’s got to be a […]
The post Best UCaaS Providers: Top Picks for Businesses appeared first on Sangoma Technologies.
Most school districts know their phone systems are outdated. But many underestimate how much those old systems are holding them back. Legacy PBX systems were not built for today’s school environment. They struggle to support hybrid learning, slow down emergency response, and cannot integrate with the modern tools schools rely on. These gaps in communication […]
The post How AI-Enabled Phone Systems Are Transforming K-12 School Communication appeared first on Sangoma Technologies.
Your UCaaS provider should make work easier. Calls should be clear. Support should show up when you need it. And as your business grows, your system should grow with you, without constant headaches. If that’s not happening, it’s time to ask some hard questions. Are dropped calls costing you business? Are your tools holding your […]
The post When to Look for a New UCaaS Provider and How to Choose One for Your Business Needs appeared first on Sangoma Technologies.
Every business works a little differently. That’s why customization in UCaaS isn’t just helpful, it’s essential. Maybe your team needs to push call data into a CRM. Maybe you want alerts when certain actions happen, or tools that talk to the software you’re already using. Whatever the setup, the point is the same: your communication […]
The post Customizing UCaaS Systems to Meet the Evolving Needs of Modern Businesses appeared first on Sangoma Technologies.
The FCC has made it official: voice service providers must now use their own SPC tokens and certificates to sign outbound calls under the STIR/SHAKEN framework. As of December, relying on third-party certificates is no longer enough. With the enforcement deadline landing on June 20, 2025, the pressure is on — especially since more than […]
The post Why STIR/SHAKEN Compliance Can’t Wait — And How Sangoma Makes It Easy appeared first on Sangoma Technologies.
The FCC has made it official: voice service providers must now use their own SPC tokens and certificates to sign outbound calls under the STIR/SHAKEN framework. As of December, relying on third-party certificates is no longer enough. With the enforcement deadline landing on June 20, 2025, the pressure is on — especially since more than […]
The post Why STIR/SHAKEN Compliance Can’t Wait — And How Sangoma Makes It Easy appeared first on Sangoma Technologies.
Modern businesses need fast, clear, and efficient communications. That’s why more companies are turning to AI-powered UCaaS platforms to help their teams and customers connect more easily. According to Metrigy’s 2025-26 global study, 53.6% of companies are extensively using AI across all or most business units, with customer service and contact centers among the top […]
The post What AI Features Should You Expect in Modern UCaaS? See Sangoma’s Approach appeared first on Sangoma Technologies.
Most comparison tables look the same, but the differences under the surface are what matter. If you need flexible deployment, built-in reliability, and support that doesn’t disappear after sign-up, the gaps between vendors get real fast. Here’s how the leading unified communications and UCaaS providers compare. Core UC Features Feature / Capability Sangoma Nextiva RingCentral […]
The post Sangoma vs. Nextiva, RingCentral, Zoom for Business Communications appeared first on Sangoma Technologies.
Audio jitter buffers are required 101 introductory material for understanding VoIP. libWebRTC’s audio jitter buffer implementation – the one in Chromium – is known as NetEQ. NetEQ is anything but basic. This is good from a user perspective since real-life networks conditions are often challenging. However, this means NetEQ’s esoteric code is complex and difficult […]
The post How WebRTC’s NetEQ Jitter Buffer Provides Smooth Audio appeared first on webrtcHacks.
After upgrading to Ubuntu Jammy and Asterisk 18.10, I saw the following messages in my logs:
WARNING[360166]: loader.c:2487 in load_modules: Module 'chan_sip' has been loaded but was deprecated in Asterisk version 17 and will be removed in Asterisk version 21.
WARNING[360174]: chan_sip.c:35468 in deprecation_notice: chan_sip has no official maintainer and is deprecated. Migration to
WARNING[360174]: chan_sip.c:35469 in deprecation_notice: chan_pjsip is recommended. See guides at the Asterisk Wiki:
WARNING[360174]: chan_sip.c:35470 in deprecation_notice: https://wiki.asterisk.org/wiki/display/AST/Migrating+from+chan_sip+to+res_pjsip
WARNING[360174]: chan_sip.c:35471 in deprecation_notice: https://wiki.asterisk.org/wiki/display/AST/Configuring+res_pjsip
and so I decided it was time to stop postponing the
overdue migration
of my working setup from
chan_sip
to
res_pjsip.
It turns out that it was not as painful as I expected, though the conversion script bundled with Asterisk didn't work for me out of the box.
Before you start, one very important thing to note is that the SIP debug
information you used to see when running this in the asterisk console
(asterisk -r):
sip set debug on
now lives behind this command:
pjsip set logger on
The first thing I migrated was the config for my two SIP phones (Snom 300 and Snom D715).
The original config for them in sip.conf was:
[2000]
; Snom 300
type=friend
qualify=yes
secret=password123
encryption=no
context=full
host=dynamic
nat=no
directmedia=no
mailbox=10@internal
vmexten=707
dtmfmode=rfc2833
call-limit=2
disallow=all
allow=g722
allow=ulaw
[2001]
; Snom D715
type=friend
qualify=yes
secret=password456
encryption=no
context=full
host=dynamic
nat=no
directmedia=yes
mailbox=10@internal
vmexten=707
dtmfmode=rfc2833
call-limit=2
disallow=all
allow=g722
allow=ulaw
and that became the following in pjsip.conf:
[transport-udp]
type = transport
protocol = udp
bind = 0.0.0.0
external_media_address = myasterisk.dyn.example.com
external_signaling_address = myasterisk.dyn.example.com
local_net = 192.168.0.0/255.255.0.0
[2000]
type = aor
max_contacts = 1
remove_existing=yes
[2000]
type = auth
username = 2000
password = password123
[2000]
type = endpoint
context = full
dtmf_mode = rfc4733
disallow = all
allow = g722
allow = ulaw
direct_media = no
mailboxes = 10@internal
auth = 2000
outbound_auth = 2000
aors = 2000
[2001]
type = aor
max_contacts = 1
remove_existing=yes
[2001]
type = auth
username = 2001
password = password456
[2001]
type = endpoint
context = full
dtmf_mode = rfc4733
disallow = all
allow = g722
allow = ulaw
direct_media = yes
mailboxes = 10@internal
auth = 2001
outbound_auth = 2001
aors = 2001
The different direct_media line between the two phones has to do with how
they each connect to my Asterisk
server
and whether or not they have access to the Internet.
For some reason, my internal calls (from one SIP phone to the other) didn't
work when using "aliases". I fixed it by changing this blurb in
extensions.conf from:
[speeddial]
exten => 1000,1,Dial(SIP/2000,20)
exten => 1001,1,Dial(SIP/2001,20)
to:
[speeddial]
exten => 1000,1,Dial(${PJSIP_DIAL_CONTACTS(2000)},20)
exten => 1001,1,Dial(${PJSIP_DIAL_CONTACTS(2001)},20)
I have not yet dug into what this changes or why it's necessary and so feel free to leave a comment if you know more here.
Once I had the internal phones working, I moved to making and receiving phone calls over the PSTN, for which I use VoIP.ms with encryption.
I had to change the following in my sip.conf:
[general]
register => tls://555123_myasterisk:password789@vancouver2.voip.ms
externhost=myasterisk.dyn.example.com
localnet=192.168.0.0/255.255.0.0
tcpenable=yes
tlsenable=yes
tlscertfile=/etc/asterisk/asterisk.cert
tlsprivatekey=/etc/asterisk/asterisk.key
tlscapath=/etc/ssl/certs/
[voipms]
type=peer
host=vancouver2.voip.ms
secret=password789
defaultuser=555123_myasterisk
context=from-voipms
disallow=all
allow=ulaw
allow=g729
insecure=port,invite
canreinvite=no
trustrpid=yes
sendrpid=yes
transport=tls
encryption=yes
to the following in pjsip.conf:
[transport-tls]
type = transport
protocol = tls
bind = 0.0.0.0
external_media_address = myasterisk.dyn.example.com
external_signaling_address = myasterisk.dyn.example.com
local_net = 192.168.0.0/255.255.0.0
cert_file = /etc/asterisk/asterisk.cert
priv_key_file = /etc/asterisk/asterisk.key
ca_list_path = /etc/ssl/certs/
method = tlsv1_2
[voipms]
type = registration
transport = transport-tls
outbound_auth = voipms
client_uri = sip:555123_myasterisk@vancouver2.voip.ms
server_uri = sip:vancouver2.voip.ms
[voipms]
type = auth
password = password789
username = 555123_myasterisk
[voipms]
type = aor
contact = sip:555123_myasterisk@vancouver2.voip.ms
[voipms]
type = identify
endpoint = voipms
match = vancouver2.voip.ms
[voipms]
type = endpoint
context = from-voipms
disallow = all
allow = ulaw
allow = g729
from_user = 555123_myasterisk
trust_id_inbound = yes
media_encryption = sdes
auth = voipms
outbound_auth = voipms
aors = voipms
rtp_symmetric = yes
rewrite_contact = yes
send_rpid = yes
timers = no
dtmf_mode = rfc4733
The TLS method line is needed since the default in Debian OpenSSL is too
strict. The timers
line is to prevent outbound calls from getting dropped after 15 minutes.
Finally, I changed the Dial() lines in these extensions.conf blurbs from:
[from-voipms]
exten => 5551231000,1,Goto(2000,1)
exten => 2000,1,Dial(SIP/2000&SIP/2001,20)
exten => 2000,n,Goto(in2000-${DIALSTATUS},1)
exten => 2000,n,Hangup
exten => in2000-BUSY,1,VoiceMail(10@internal,su)
exten => in2000-BUSY,n,Hangup
exten => in2000-CONGESTION,1,VoiceMail(10@internal,su)
exten => in2000-CONGESTION,n,Hangup
exten => in2000-CHANUNAVAIL,1,VoiceMail(10@internal,su)
exten => in2000-CHANUNAVAIL,n,Hangup
exten => in2000-NOANSWER,1,VoiceMail(10@internal,su)
exten => in2000-NOANSWER,n,Hangup
exten => _in2000-.,1,Hangup(16)
[pstn-voipms]
exten => _1NXXNXXXXXX,1,Set(CALLERID(all)=Francois Marier <5551231000>)
exten => _1NXXNXXXXXX,n,Dial(SIP/voipms/${EXTEN})
exten => _1NXXNXXXXXX,n,Hangup()
exten => _NXXNXXXXXX,1,Set(CALLERID(all)=Francois Marier <5551231000>)
exten => _NXXNXXXXXX,n,Dial(SIP/voipms/1${EXTEN})
exten => _NXXNXXXXXX,n,Hangup()
exten => _011X.,1,Set(CALLERID(all)=Francois Marier <5551231000>)
exten => _011X.,n,Authenticate(1234)
exten => _011X.,n,Dial(SIP/voipms/${EXTEN})
exten => _011X.,n,Hangup()
exten => _00X.,1,Set(CALLERID(all)=Francois Marier <5551231000>)
exten => _00X.,n,Authenticate(1234)
exten => _00X.,n,Dial(SIP/voipms/${EXTEN})
exten => _00X.,n,Hangup()
to:
[from-voipms]
exten => 5551231000,1,Goto(2000,1)
exten => 2000,1,Dial(PJSIP/2000&PJSIP/2001,20)
exten => 2000,n,Goto(in2000-${DIALSTATUS},1)
exten => 2000,n,Hangup
exten => in2000-BUSY,1,VoiceMail(10@internal,su)
exten => in2000-BUSY,n,Hangup
exten => in2000-CONGESTION,1,VoiceMail(10@internal,su)
exten => in2000-CONGESTION,n,Hangup
exten => in2000-CHANUNAVAIL,1,VoiceMail(10@internal,su)
exten => in2000-CHANUNAVAIL,n,Hangup
exten => in2000-NOANSWER,1,VoiceMail(10@internal,su)
exten => in2000-NOANSWER,n,Hangup
exten => _in2000-.,1,Hangup(16)
[pstn-voipms]
exten => _1NXXNXXXXXX,1,Set(CALLERID(all)=Francois Marier <5551231000>)
exten => _1NXXNXXXXXX,n,Dial(PJSIP/${EXTEN}@voipms)
exten => _1NXXNXXXXXX,n,Hangup()
exten => _NXXNXXXXXX,1,Set(CALLERID(all)=Francois Marier <5551231000>)
exten => _NXXNXXXXXX,n,Dial(PJSIP/1${EXTEN}@voipms)
exten => _NXXNXXXXXX,n,Hangup()
exten => _011X.,1,Set(CALLERID(all)=Francois Marier <5551231000>)
exten => _011X.,n,Authenticate(1234)
exten => _011X.,n,Dial(PJSIP/${EXTEN}@voipms)
exten => _011X.,n,Hangup()
exten => _00X.,1,Set(CALLERID(all)=Francois Marier <5551231000>)
exten => _00X.,n,Authenticate(1234)
exten => _00X.,n,Dial(PJSIP/${EXTEN}@voipms)
exten => _00X.,n,Hangup()
Note that it's not just replacing SIP/ with PJSIP/, but it was also
necessary to use a format supported by
pjsip
for the channel since SIP/trunkname/extension isn't supported by pjsip.
When a school system upgrades its bus tracking app, everyone celebrates. When it upgrades the way staff, students, and parents actually communicate (calls, alerts, meetings, files, messages), no one notices. Until it matters. Most districts still run on duct-taped communication. Office phones. Teacher apps. Parent emails. A few radios. Maybe a video tool that kind […]
The post Unified Communications in Education: A Complete Guide to Safer, Smarter, and More Connected Schools appeared first on Sangoma Technologies.
Retail runs on timing and coordination. Whether it’s a customer calling to check product availability or a staff member needing input from the stockroom, even a single missed call or delayed message can mean a lost sale. Multiply that by dozens of interactions a day, and communication breakdowns start to impact revenue and reputation. Zendesk […]
The post Unified Communications in the Retail Sector: How to Keep Customers Coming Back appeared first on Sangoma Technologies.
In manufacturing, clear and timely communication keeps everything moving. When messages don’t reach the right people fast enough, things start to break down—machines sit idle, deliveries get pushed back, and safety takes a hit. Teams end up working in silos, reacting instead of staying ahead. And the longer it takes to connect, the more it […]
The post How Unified Communications Keeps Manufacturing Teams Efficient, Safe, and Online appeared first on Sangoma Technologies.
This customer story was originally published by AskNicely. Sangoma Technologies Corporation is a trusted leader in business communications, giving companies the flexibility to choose on-premises, cloud, or hybrid unified communications as a service (UCaaS) solutions, combining voice, video, networking, and security for an exceptional, integrated experience. They’ve been working with AskNicely for a year and […]
The post One year with AskNicely delivered big customer experience impacts for Sangoma appeared first on Sangoma Technologies.
It’s 2025, and patients expect healthcare to feel as simple as ordering a ride or booking a dinner reservation. They want tools that help them connect, learn, and manage their care, without getting stuck on hold or confused by medical jargon. A recent HIMSS study found that over half of patients use digital tools regularly […]
The post What Patients Really Want from Digital Health Tools in 2025 appeared first on Sangoma Technologies.
Running a retail business is hard enough. Managing your phone system shouldn’t make it harder. If you’ve ever struggled to answer every call, connect staff across stores, or reach customers quickly, you’re not alone. Most communication systems weren’t built with retail in mind. That’s why finding the right retail UCaaS provider matters more than ever. […]
The post What to Look for in a Retail UCaaS Phone System: 7 Must-Have Features appeared first on Sangoma Technologies.
Healthcare practices today face growing communication challenges. Staff are stretched thin, patient expectations are rising, and many organizations are still relying on outdated phone systems—tools that were never designed for the speed and complexity of modern healthcare delivery. In many cases, these systems require staff to manually check voicemails, return missed calls, and track down […]
The post Exploring the Impact of UC on Healthcare Workflow Efficiency appeared first on Sangoma Technologies.
Unified Communications as a Service (UCaaS) brings voice, video, messaging, and collaboration into one cloud-based platform. It’s designed for how modern teams work—whether they’re remote, hybrid, or in-office. With easy deployment, low IT overhead, and built-in scalability, UCaaS helps businesses stay productive and connected without managing servers or juggling apps. What is UCaaS (Cloud UC)? […]
The post Cloud UCaaS Deployment: Simple, Scalable Communications for Growing Businesses appeared first on Sangoma Technologies.
Most clinics don’t need to be told their communication tools are broken—they live it every day. A patient leaves a voicemail that gets buried. A nurse calls back but misses the window. The front desk is juggling calls while trying to check in a walk-in. No one has time to track who said what, let […]
The post How Unified Communications Helps Healthcare Teams Deliver Better Patient Care appeared first on Sangoma Technologies.
In hospitality, every minute matters. When communication breaks down, it shows fast. A request is missed, a handoff fails, a guest ends up waiting—and they don’t forget. It’s rarely a people problem. Most teams are doing their best with tools that were never meant to work together. Desk phones, radios, personal devices, random apps. Everyone’s […]
The post How Unified Communications Improve Customer Satisfaction in Hospitality appeared first on Sangoma Technologies.
For industries with strict compliance requirements or data sovereignty concerns, keeping communication infrastructure in-house can offer added peace of mind. On-Premises Unified Communications (UC) gives you full administrative control over updates, integrations, and data—without sacrificing the collaboration features teams rely on. While cloud and hybrid deployments are secure and scalable (and often the right fit […]
The post On-premises UC: A Reliable Choice for Regulated Industries appeared first on Sangoma Technologies.
If you’ve ever juggled before, you’ve probably let the balls drop. Now, imagine trying to juggle communication between multiple hotel properties. It’s easy to see how things can get missed, calls can get lost, and guests can end up frustrated. Managing multiple properties means managing a lot of moving parts. But one part that often […]
The post Why Multi-Property Hotel Chains Need a Centralized Telephony System appeared first on Sangoma Technologies.
Unified Communications (UC) usually pushes businesses towards a tough choice: the robust control and security of on-premises systems, or the agility and scalability provided by cloud-based solutions. How about if you didn’t have to choose? Hybrid UC delivers precise control over critical infrastructure while harnessing cloud flexibility to scale effortlessly. In this article, we’ll explore […]
The post Why Hybrid UC is the Best of Both Worlds for Scalability and Control appeared first on Sangoma Technologies.
OpenAI is utilizing WebRTC for its Realtime API! Even better, webrtcHacks friend and Pion founder Sean DuBois helped to develop it and agreed to a Q&A about the implementation. It is not often a massive WebRTC use case like this emerges so rapidly. In addition, Sean was extremely transparent about his work at OpenAI. In […]
The post OpenAI & WebRTC Q&A with Sean DuBois appeared first on webrtcHacks.
Healthcare communication should be easy. But too often, it’s a struggle. Outdated phone systems create frustration, confusion, and delays. Patients wait on hold, important messages get lost, and staff spend too much time tracking down information. This isn’t just inconvenient—it’s costly, both for practices and patients. The good news? There’s a better way. By upgrading […]
The post Outdated Phone Systems Are Hurting Healthcare. Here’s How Unified Communications Can Fix It appeared first on Sangoma Technologies.
If your hotel brand can’t deliver a consistent guest experience across every property, you’re losing trust—and revenue. Guests expect the same level of service whether they’re checking in at your flagship resort in Miami or your boutique property in Denver. But for most hotel groups, delivering that kind of consistency isn’t easy. Disconnected communication tools, […]
The post How Hotels Can Use Unified Communications to Deliver High-Quality Guest Experiences Across Every Brand Location appeared first on Sangoma Technologies.
Let’s face it: launching a UCaaS (Unified Communications as a Service) system from scratch is daunting. This type of cloud phone system incorporates many different types of communication/collaboration services to help your business succeed, including voice, video, messaging, meetings, presence, and team-based collaboration. And while the hallmark of a UCaaS environment is its ability to bring […]
The post Easy UCaaS Migration and Deployment: Best Practices and Challenges appeared first on Sangoma Technologies.
Technology has changed how we work—and fast. Teams are spread across offices, homes, and time zones. Customers expect fast responses at any time of day. Meanwhile, businesses are juggling a mess of apps, devices, and phone systems that don’t talk to each other, slow everyone down, and cost too much to maintain. That’s why more […]
The post What is UCaaS? A Complete Guide to Unified Communications as a Service appeared first on Sangoma Technologies.
Thursday, April 10 at 17:00 UTC / 11:00 AM EDT / 8:00 AM PDT OpenAI is utilizing WebRTC for its Realtime API! Join Chad Hart, Editor of webrtcHacks, for an analysis of WebRTC trends in GitHub, OpenAI is utilizing WebRTC for its Realtime API! Join webrtcHacks editor Chad Hart for a Q&A with OpenAI’s WebRTC […]
The post REMINDER: Livestream this Thursday April 10: Open AI WebRTC Q&A with Sean DuBois appeared first on webrtcHacks.
Healthcare providers are under more pressure than ever. Doctors and healthcare staff spend long hours, dealing with mountains of paperwork, managing telemedicine appointments, and answering patient calls. It’s a lot to handle—and it takes time away from what matters most: caring for patients. That’s where Unified Communications (UC) and Generative AI (GenAI) come in to […]
The post Why Healthcare Providers Are Turning to UC with GenAI for Better Patient Care appeared first on Sangoma Technologies.
As Chad mentioned in his post last week, we have been diving into what OpenAI is doing with WebRTC. Over the last months, we actually did a full teardown and compared OpenAI’s Realtime API to what powers chatgpt.com. What intrigued us most was how to measure response latency. One of the key metrics for any […]
The post Measuring the response latency of OpenAIs WebRTC-based Realtime API appeared first on webrtcHacks.
In hospitality, the pressure to provide exceptional guest experiences is always high. Whether you run a boutique hotel or a large resort, guests expect fast, personalized service, and any hiccup in communication can quickly lead to frustration and bad reviews. How can you keep things running smoothly and ensure each guest leaves happy? The answer […]
The post The Role of Unified Communications in Enhancing Guest Experience in Resorts and Hotels appeared first on Sangoma Technologies.
Every missed call, delayed message, or clunky video conference costs your business more than time—it costs opportunities. The average employee switches between 13 different apps 30 times a day, losing focus and wasting hours in the process. Over the course of a week, that’s four hours spent just trying to reorient after toggling between tools. […]
The post The Ultimate Guide to Unified Communications Solutions appeared first on Sangoma Technologies.
Imagine being a doctor at a busy practice. Your office is packed with patients, your team is juggling phone calls, prescription refills, appointment scheduling, and in-person visits—all at once. The phone rings again, but this time, it’s not answered, or worse, it’s dropped entirely. You’re already buried in paperwork, and the outdated phone systems aren’t […]
The post Doctors Losing Patients Over Missed Calls: How Sangoma’s Healthcare Communications Can Help appeared first on Sangoma Technologies.
With big players like NEC pulling the plug on their on-premises offerings and others cutting support for traditional systems, it’s easy to think the future of Unified Communications (UC) lies entirely in the cloud. However, not all companies are on board with this shift. At Sangoma, we’ve committed to continuing to invest in Switchvox On-Premises […]
The post Switchvox Admin Training Videos for Beginners and Experts appeared first on Sangoma Technologies.
OpenAI using WebRTC in its Realtime API is obviously exciting to us here at webrtcHacks. Fippo and I were doing some blackboxing of this based on a quick sample the day of the WebRTC announcement so we could look at it in webrtc-internals and Wireshark. Some weeks later, my daughter was interested in using ChatGPT […]
The post The Unofficial Guide to OpenAI Realtime WebRTC API appeared first on webrtcHacks.
International Women’s Day is a time to celebrate the incredible contributions of women worldwide and reflect on the progress made toward gender equality. At Sangoma, we proudly recognize the women who inspire us daily, driving innovation, growth, and success across our company and the broader business world. As a company rooted in values like trust, […]
The post Celebrating Women in Business: How Sangoma Supports Empowerment and Innovation appeared first on Sangoma Technologies.
The communications world is buzzing with big changes, and it’s leaving many small and medium-sized businesses (SMBs) in a tough spot. Avaya, a long-standing player in the space, has announced that starting June 30, 2025, it will no longer support businesses with fewer than 200 seats on its Avaya Experience Platform (AXP). If you’re one […]
The post Avaya Abandons SMBs – Why Sangoma is the Ideal Solution for Small and Medium-Sized Businesses appeared first on Sangoma Technologies.
We’re excited to share that Jitsi has been accepted into Google Summer of Code 2025! This is a great opportunity to get hands-on experience, collaborate with our awesome community, and contribute to the Jitsi open-source ecosystem.
If you’re interested in participating, check out our idea tracker for some inspiration. If you have your own cool project idea, we’d love to hear it!
To get started, make sure to check out the following resources:
The deadline for applications is April 8th, 2025, so be sure to get your proposal in before then! We’re here to support you throughout the process, and we can’t wait to see what you’ll bring to the table.
Stay tuned for updates, join the community discussions, and let’s make GSoC 2025 amazing!
The post GSoC 2025, let’s do this! appeared first on Jitsi.
I have been updating a WebRTC in Open Source dataset derived from GitHub event data for 10 years now. I periodically update this to look for recent trends on WebRTC activity, popular repos, and new API usage. I hosted a live stream of my 2024 review back in December where Tsahi Levent-Levi joined to help […]
The post 2024 WebRTC in Open Source Review: A Quantitative Analysis appeared first on webrtcHacks.
Debugging WebRTC media issues, especially video, often requires access to the unencrypted RTP payloads. We talked about this back in 2017 already and had a great blog post on using the libWebRTC “video_replay” tool. While that post has aged remarkably well, video_replay has improved significantly, in particular since it is now possible to create the […]
The post Capture & Replay WebRTC video streams for debugging – video_replay 2025 update appeared first on webrtcHacks.
Understanding the FCC’s New STIR/SHAKEN Rules: A Compliance Guide for Businesses
The post The New FCC STIR/SHAKEN Rules and Why They Matter for Your Business in 2025 appeared first on Sangoma Technologies.
The AV1 codec represents the cutting edge of video compression technology. Developed by the Alliance for Open Media (AOMedia), a consortium including tech giants like Google, Microsoft, Netflix, and Mozilla, AV1 is a loyalty-free video codec that was designed to meet the ever-growing demand for high-quality video streaming while minimizing bandwidth usage.
It offers up to 30-50% better compression compared to its predecessors like VP9, VP8 and H.264, enabling sharper visuals at lower bitrates. This makes it an ideal choice for bandwidth-constrained environments, such as mobile networks or rural areas with limited internet speeds. Despite its impressive capabilities, the adoption of AV1 has been slower than anticipated due to several factors. AV1 has higher computational demands as its advanced compression algorithms require significantly more processing power for encoding and decoding. Hardware acceleration for AV1 is still emerging and therefore use of AV1 can result in higher CPU/energy consumption and suboptimal performance on low end devices and those without hardware support.
The path to adding AV1 support in Jitsi was not straightforward. Before we could enable AV1, it was essential to integrate support for the various modes and complexities that the codec offers, both in the Jitsi Meet client and the Jitsi Video Bridge (JVB). Jitsi had to extend JVB’s capabilities to handle AV1 streams, including managing simulcast and SVC modes seamlessly for multi-user conferences. This groundwork laid the foundation for AV1’s eventual inclusion as the preferred codec in Jitsi deployments.
AV1’s RTP encapsulation is unusual, if not weird, compared to RTP payloads for other video codecs – all the information an RTP Selective Forwarding Unit (SFU) like the JVB needs is carried in a “Dependency Descriptor” RTP header extension, rather than in the RTP payload proper. This means that the JVB doesn’t technically need to support the AV1 codec at all – it only needs to support the dependency descriptor header extension.
This format is unusual in that it was developed not in the IETF, where RTP payload formats are normally defined, but rather by AOMedia itself. The main consequence of this is that the header is encoded very much like a video codec: it’s very parsimonious of bit usage, at the cost of being both annoyingly complicated to parse, and being stateful – information needed to parse the header is sent only at intervals. For more information about this complexity, see Lorenzo’s post from several years ago – https://www.meetecho.com/blog/av1-svc/.
Handling the complex parsing is relatively straightforward once some utility classes are written. However, handling the statefulness is harder, especially given that an SFU always needs to be prepared for packet loss and reordering, so packets that use some state may arrive before the packet that provides it. Thus this work needs to keep track of the state that’s reported in those packets that carry it, and pass it forward to the parser to parse subsequent headers, while handling the possibility that a state update may have been missed.
Because the AV1 DD is a header extension, it can be applied to codecs other than AV1 itself. Notably, this allows us to indicate temporal scalability of an H.264 stream, which is useful because H.264 (without its little-implemented SVC extensions) has no way to indicate temporal scalability of its packets. As a result, the work to support the AV1 DD also allows Jitsi to enable scalable H.264 streams for JVB-mediated conferences as well! (Though there are currently some bugs in Chrome that make this less efficient than it could be – see here and here.) In fact the header can be applied to any video codec, though we still prefer to handle VP8 and VP9 using their in-payload information when that information is available.
Another notable feature of the AV1 dependency descriptor is its concept of “decode targets”, which are a specific layer that a decoder can decode, and thus that an SFU can forward. These usually correspond to a specific spatial and temporal layer, but technically they do not have to. The idea is that a decoder can choose among the various decode targets present in the stream. In most cases it would want to choose the highest-quality one available, but in some circumstances (for instance if it was CPU-constrained, or displaying a source in a small window) it could choose a lower-quality target instead.
This has the consequence that a stream needs to be explicit about what decode targets are actually present. An SFU, by design, forwards only some of the layers in a stream; this is what it means to “selectively forward”. As a result, the ultimate decoder needs to know what layers it can actually expect to receive, vs. which ones it won’t receive, or it can end up waiting forever while it never gets the frames it thinks it should render. To handle this case, the AV1 dependency descriptor contains a decode target bitmask in the AV1 header extension to indicate which layers are still present in the stream. This bitmask then needs to be updated every time the SFU changes its layer forwarding decision, so the decoder doesn’t try to wait to decode a decode target that won’t be arriving any more, or, conversely, so it can know to start decoding a new layer that’s newly started arriving. Fortunately, the logic to do this work is not too complicated, and is similar in complexity to the logic needed to modify the in-payload information for forward VP8 or VP9 streams.
With the release of Chromium M111, significant advancements were made in WebRTC, particularly with the introduction of Scalable Video Coding (SVC) support. This update enabled WebRTC applications to configure encoding parameters for SVC by extending the RTCRtpEncodingParameters dictionary. Around the same time, Chrome also introduced AV1 and VP9 simulcast support. Before Chromium M111, the K-SVC mode (Keyframe-scalable video coding) was the only supported mode for SVC. This update allowed Jitsi Meet to experiment with various scalability modes for AV1 and VP9.
In a Jitsi conference, the client and JVB work in tandem to ensure efficient video streaming. This involves an ongoing exchange of sender and receiver video constraints.
This dynamic coordination minimizes bandwidth usage and optimizes network resources while maintaining the quality of the user experience. Once the client receives sender constraints, it configures its outbound video streams using RTCRtpEncodingParameters. These parameters are tailored based on:
For AV1 and VP9, three operating modes were tested:
SVC allows a single video stream to be encoded in layers, each layer adding more detail or resolution to the base stream while simulcast involves sending multiple independent video streams of the same content, each at a different resolution and bitrate.
| Aspect | Simulcast | SVC |
Encoding |
Multiple streams encoded separately. |
One stream encoded with multiple layers. |
Bandwidth Usage (Sender) |
Higher (multiple streams). |
Lower (single stream). |
CPU Usage (Sender) |
High (due to multiple encodings). |
Lower (single encoding with layers). |
CPU Usage (Receiver) |
Lower (no need to decode layers). |
Higher (decoding layered streams). |
| Adaptability | Coarser (switching between streams). |
Finer (dynamic layer adjustment). |
Compatibility |
Broadly supported in WebRTC platforms. |
Limited support, requires advanced codecs. |
After extensive performance testing and careful evaluation of product requirements, Jitsi selected full SVC mode as the default configuration for both AV1 and VP9. This choice ensures optimal scalability and video quality across Jitsi’s deployments. However, this behavior is not rigid; it is configurable and can be easily overridden through config.js settings, providing flexibility to adapt to specific use cases or deployment needs.
To determine the optimal video codec for use in the Jitsi Meet client, Jitsi conducted comprehensive testing under realistic conditions to ensure that codec selection would meet product needs for quality, performance, and scalability. Below is an overview of the methodologies and considerations involved:
By rigorously analyzing these metrics, Jitsi optimized its codec selection strategy. While Full SVC modes remained the default for high-performance scenarios, fallback options like VP9 and VP8 were configured for legacy or resource-constrained devices. This comprehensive approach ensures that the Jitsi Meet client provides the best possible video experience across a wide range of devices and network conditions.
With the integration of AV1 into Jitsi Meet, users benefit from superior compression and high-quality video at lower bitrates. However, these advantages come at the cost of increased computational demands, especially on low-end devices. To address this, Jitsi introduced a three-fold adaptive quality control mechanism, ensuring a seamless experience even under CPU constraints.
This adaptive approach enables Jitsi Meet to leverage the advanced capabilities of AV1 while ensuring that users with diverse hardware configurations can participate in meetings without disruptions caused by excessive CPU usage.
However, when the CPU spike originates from an external process rather than the Jitsi Meet client, the adaptive mode ensures that quality degradation is minimal. To enhance the user experience, Jitsi Meet also incorporates a recovery mechanism that restores the video configuration once the external constraints are resolved.
This gradual approach minimizes the risk of overloading the system during recovery. It also adapts to fluctuating CPU availability, maintaining a balance between performance and quality. The client handles this entire process dynamically without any user interaction, providing a seamless experience.
Firefox and Safari do not advertise support for the AV1 codec yet. As a result, when users on these browsers join a call, all other participants automatically switch to the next codec in the preferred list, ensuring compatibility across all endpoints.
Additionally, while Chromium-based mobile endpoints are capable of both encoding and decoding AV1, Jitsi has opted to use AV1 only for decoding. For encoding, a lower-complexity codec is used, as encoding typically imposes a higher CPU load compared to decoding. This decision balances performance and device resource constraints, especially on mobile devices.
We have great news for you then!! AV1 support was introduced to Jitsi in June 2024 and has been available in our stable packages ever since. Initially, AV1 had to be manually configured as the preferred codec through config.js settings, allowing users to opt in.
Building on this, AV1 was soon made the preferred codec on meet.jit.si, marking a significant step in leveraging its advanced compression capabilities. Starting with release stable-9909, AV1 became the default preferred codec in our Docker deployments, ensuring out-of-the-box support for users opting for containerized setups.
After thorough experimentation and analysis of real-world performance data, we’re excited to share that AV1 will very soon become the default preferred codec in all deployments, bringing its exceptional bandwidth efficiency and video quality to a broader audience. Stay tuned!
Your personal meetings team.
P.S – With contributions from Jonathan Lennox (Jitsi VideoBridge)
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Sangoma TeamHub—a user-friendly app designed to simplify team collaboration and boost productivity—is now available to new users of Sangoma's UCaaS platform CommUnity.
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A portion of the telephone network that dates back several decades is often called Plain Old Telephone Service, or POTS for short. In recent years.
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Tuesday, December 10 @ 5PM CET / 11AM ET / 8AM PT / 16:00 UTC Join Chad Hart, Editor of webrtcHacks, for an analysis of WebRTC trends in GitHub, StackOverflow, and other open-source communities. Leveraging advanced quantitative analysis techniques, this talk examines millions of GitHub events and developer activity data to uncover key trends […]
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Sangoma TeamHub—a user-friendly app designed to simplify team collaboration and boost productivity—is now available to new users of Sangoma’s UCaaS platform CommUnity.
With features like voice calling, real-time chat, SMS, video meetings, and file storage, you get all your communication tools in one place without jumping between multiple apps. Stay connected wherever you are! Access Sangoma TeamHub easily through your web browser or use the desktop app on Mac or Windows. It’s also available on iOS and Android mobile devices.
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As businesses increasingly migrate to IP networks, a significant challenge remains: how do you transition from legacy POTS (Plain Old Telephone Service) while maintaining the investment in devices like phones, fax machines, and security equipment?
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As part of our commitment to innovation and customer support, we are excited to announce the launch of @ASKSangoma, an AI-powered Knowledge Bot. The latest version 3.3 of the Sangoma Teamhub collaboration app introduces a new bot designed to assist our partners and customers with inquiries regarding Sangoma’s product portfolio. Trained on comprehensive product documentation, […]
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WebRTC’s peer connection includes a getStats method that provides a variety of low-level statistics. Basic apps don’t really need to worry about these stats but many more advanced WebRTC apps use getStats for passive monitoring and even to make active changes. Extracting meaning from the getStats data is not all that straightforward. Luckily return author […]
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ClueCon has just finished. Here are some of my photos.
Seven Du from China won the Macbook. Congratulations.
ClueCon has just finished. Here are some of my photos.
Seven Du from China won the Macbook. Congratulations.
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