Forum Discussion
3pip phones ice issue
Any suggestions how to resolve the following issue poly vvx (and for testing trio in sfb mode).No audio when making a call to internet. Ie making a pstn call (ms calling plan) or calling another tea...
- So ive actually ran into this. This has something to do with the backend where the tenant was never originally provisioned for Skype for Business Online (IE After September 2019). The tenant that I have this issue in cannot get two-way audio on any 3PIP devices. It works on the same network as media can flow directly to the other device, but when it cannot, it relies on the Microsoft Cloud Interop Gateway. The only resolution here would be to contact Microsoft Support and request that SFBO be provisioned for your tenant.
Responded there 🙂
Adding notes in case others hit the issue
MS case finally reached a very good engineer and conclusion was
1. Tenant is in a forest which doesn’t have Media Relays deployed, but only Transport Relays. Transport Relay is latest Relay services for Teams and requires MRAS version 3.0 or higher for STUN/TURN requests to succeed.
2. However most 3PIP phones are at MRAS 2.0 only and hence the TURN requests are failing.
3. So the resolution is to move the tenant to a forest that have Media Relays.
4. This Tenant move between forest is recommended during weekends as Teams/Outlook user might get disconnected briefly during the forest migration.
While the resolution worried me a lot
It went very smoothly and we now have working 3pip phones... which I am desperate to replace... but till then.
Thanks again Eric as well
MS case finally reached a very good engineer and conclusion was
1. Tenant is in a forest which doesn’t have Media Relays deployed, but only Transport Relays. Transport Relay is latest Relay services for Teams and requires MRAS version 3.0 or higher for STUN/TURN requests to succeed.
2. However most 3PIP phones are at MRAS 2.0 only and hence the TURN requests are failing.
3. So the resolution is to move the tenant to a forest that have Media Relays.
4. This Tenant move between forest is recommended during weekends as Teams/Outlook user might get disconnected briefly during the forest migration.
While the resolution worried me a lot
It went very smoothly and we now have working 3pip phones... which I am desperate to replace... but till then.
Thanks again Eric as well
