[YMCS/YDMP Free Trial Program]Yealink would like to offer Free Trial Program of Yealink device management service for our current eligible customers. You can see the details below.

Post Reply 
Thread Rating:
  • 0 Votes - 0 Average
  • 1
  • 2
  • 3
  • 4
  • 5
No video / black screen between CUCM and Yalink
Author Message
CMD Offline
Junior Member

Posts: 1
Joined: Oct 2022
Reputation: 0
Post: #1
No video / black screen between CUCM and Yalink
We have configured SIP Trunk between CUCM and Yealink PBX.
When calling from Yealink to CUCM, the video does not work at all
When calling from CUCM to Yealink, there is a picture on the Yealink phone, but there is no video on the Cisco phone - a black screen.

We checked the settings with codecs, there are consistent codecs available from CUCM and Yealink

From the Yealink side, the VP59 device is used for testing.
From the CUCM side, the Cisco 9951.

Next situation:
1. When calling from VP59 to 9951: there is no video with a kick to the side
2. When calling from 9951 to VP59: there is indeed video on VP59 that is valid from 9951, but at the same time there is a black screen on 9951 (the video starts, but there is no picture).

Recently discovered a way to fix the black screen from the 2nd paragraph above. On the VP59, the video call speed has been automatically changed to 384 kbps. If you specify a speed higher or Auto, then the video is not transmitted.
10-17-2022 02:18 AM
Find all posts by this user    like0    dislike0 Quote this message in a reply
Post Reply 

Messages In This Thread
No video / black screen between CUCM and Yalink - CMD - 10-17-2022 02:18 AM

Possibly Related Threads...
Thread: Author Replies: Views: Last Post
  Screen covers? (for branding) syadnom 0 1,079 08-18-2022 11:28 PM
Last Post: syadnom
  Screen Saver Stops Working awilson@intermaxteam.com 3 4,239 02-13-2022 05:09 AM
Last Post: complex1
  Unable to establish secure connection with CUCM azar 0 2,079 10-17-2021 03:25 PM
Last Post: azar
  Video Door / Lock Advice jaseinatl 1 3,707 03-11-2021 04:00 AM
Last Post: Yisroel_MongoTEL
  Dialing and what appears on the screen ajadams@centrictel.com 5 8,273 09-24-2020 12:53 AM
Last Post: Albert_Yealink
  T58 Screen Saver igork007 1 5,087 01-13-2020 07:13 PM
Last Post: complex1
  Replacement Screen T48G yeayealink 2 6,689 05-27-2019 03:07 AM
Last Post: jennytran
  Disabling screen timeout on T29G oliver@olivermarshall.net 1 9,674 05-24-2019 01:30 PM
Last Post: complex1
  Yealink VCD Internet Video Call Settings Nezar 0 3,611 05-09-2019 12:34 PM
Last Post: Nezar
  Screen Default Back to Page 1 Kiwi 0 3,803 04-16-2019 01:22 AM
Last Post: Kiwi

Forum Jump:

User(s) browsing this thread: 1 Guest(s)

Contact Us   Yealink   Return to Top   Return to Content   Lite (Archive) Mode   RSS Syndication