FreePBX v15 WebRTC Phone Widget - Call Buttons UI Bug

[afreestone (Tony Freestone)]

Some background -

We have been using FreePBX v13 for about 6 years as our enterprise PBX as well as our contact center platform (Noble Systems) audio path. Pre-pandemic our call center agents used Cisco CP-7841 SIP phones as their endpoint.

Like the rest of the US, starting in March of 2020 we migrated 200 reps to a mobile scenario, currently using the UCP/WebRTC phone via a Chromebox. Each rep connects back to the corporate network via a locally installed Cisco AnyCopnnect client so the PBX is on-net, so to speak.

We are working to migrate to v15 over the next 15-30 days. Our testing of the v15 UCP/WebRTC phone exposed a bug in the PJSIP extension/device which makes it not usable for production. The bug is that every 600 seconds after initial login, the WebRTC phone refreshes its call buttons UI back to just the “Call” button, no matter if a call is in progress or not.

So if you need to place the call on hold, you are out of luck, and the only way to end the call is to refresh the UCP or log out of it.

We have an open paid support ticket (977077) and the Sangoma team has acknowledged the issue, but no ETR is available.

My questions to the group of FreePBX users on v14/v15 -

1. Have you also seen this behavior in the UCP/WebRTC phone?
2. If so what workaround(s) have you tried if any?

Here are links for three other related tickets for reference -

WebRTC - hangup button / ring / commercial version

Hi All! I am starting playing with WebRTC, and in my initial test I got a problem similar with WebRTC Hangup Button Disappears mid call During a call, the call appears (just visual) to be ended… but I am on a call yet… but I lost the Hangup and Hold Button. I got this problem 2 or 3 times, and the time is not the same. One was short, other was 12min. Here is a newbie doubt… Isn’t there ring (fake) when I place a call? And lastly, to improve this WebRTC, which product is the commercial versio…

WebRTC Hangup Button Disappears mid call

Hello, we’re experiencing an issue with FreePBX 14, the UCP and the WebRTC module (All up to date, WebRTC has even been installed from Edge 14.0.38) where as the hangup button disappears in the middle of the call. The only way to hangup the phone is to reload the browser page. I could not find anything in the Asterisk Logs, or the webserver logs to determine what is the cause, but when watching the Console with my Browsers Developer Tools at the 9:10 mark the message Engine Registered appeared,…

https://issues.freepbx.org/browse/FREEPBX-16066

Note - we are testing the Sangoma Connect Android app installed on the Chromebox systems as a possible interim solution.

[deon_smart (South Africa)]

Hi Tony

Same problem here. We just rolled out webrtc and the same issue came flying in. We first thought it could be the client VPN or browser related but it is not thus far. I logged a ticket with Sangoma before reading this thread.

Did you perhaps find a resolution to this?