Unable to use Opus Codec with 7821 IP Phone

[lpinuel]

The SDP negotiation fails. It seems Opus is not available in the phone.

I am using firmware version sip78xx.11-7-1-17 which is supposed to include support for this codec.

Any help?

Regards

Luis

---

DEBUG> show capabilities

Show Capabilities
Device Model :CP-7821
Touch Screen : No
MediaButtons : Yes
Headset Button : Yes
Navigation Buttons : Yes
Select Buttons : Yes
Hold/Resume Button : Yes
Transfer Button : Yes
Redial Button : No
Video Mute Button : No
MenuApp Button : Yes
Messages Button : Yes
Contacts Button : No
ScreenCtrl Button : No
Number Of LineKeys : 2
Group Listen : No
Gig Ethernet : No
Background Image : No
WideBand Headset Only: No
Add On Modules : No
Intercom : Yes
Bluetooth : No
Wi-Fi : No
USB : No
SDIO Card : No
Media Audio Codec : G.711
Media Audio Codec : G.722
Media Audio Codec : G.729
Media Audio Codec : L16
Media Audio Codec : iLBC
Media Audio Codec : G.726

[Abhay Singh Reyal]

Kindly find the below link helpful 

The phones now support the Opus audio codec, which offers an improved, higher-quality audio for voice calls. Opus is supported on Cisco Unified Communications Manager version 11.0(1) and later.

http://www.cisco.com/c/en/us/support/docs/unified-communications/unified-communications-manager-callmanager/200591-OPUS-Codec-Overview.html

Hope this helps.

Rate all helpful posts.

Regards

Abhay Singh Reyal

[lpinuel]

I'm sorry, I'm using Asterisk instead of the  Cisco Unified Communications Manager :-(

Thanks.

Luis

[Abhay Singh Reyal]

So, I believe that answers your discussion. Find the data sheet helpful as well for supported codecs 

http://www.cisco.com/c/en/us/products/collateral/collaboration-endpoints/unified-ip-phone-7800-series/data-sheet-c78-729488.html

And as per link share earlier, Opus is supported on Cisco Unified Communications Manager version 11.0(1) and later.

Regards

Abhay

Kindly rate all helpful posts !!!

[lpinuel]

If the new firmware supports Opus, in theory it would be usable without CUCM in the same way as the other codecs. But the phone debug command "show capabilities" does not show Opus Codec capability and the phone does not offer Opus in the SDP negotiation.

-Luis