Video conference not work with voice gateway PVDM3?

[samhopealpha]

Hi Everybody, 

I'm going to create a meetme video conference. However, when config it to use VGA, only audio conference is allowed

Here is the hardware:

• PVDM3-32 x 2
• VIC2-2FXO
• VIC3-2FXS/DID
• 9971 ip phone x 3

Here is the VG config (working), 

VG(Config)#
!
voice-card 0
voice-service dsp-reservation 6
!
dspfarm profile 1 conference video homogeneous
codec g729br8
codec g729r8
codec g729abr8
codec g729ar8
codec h264 cif frame-rate 15 bitrate 128kbps
maximum conference-participants 4
maximum layout 1x1
maximum sessions 1
associate application SCCP
!

Here is the VG config (Fail), 

VG(Config)#
!
voice-card 0
voice-service dsp-reservation 6
!
dspfarm profile 1 conference video homogeneous
codec g729br8
codec g729r8
codec g729abr8
codec g729ar8
codec h264 vga frame-rate 30 bitrate 1mbps
maximum conference-participants 4
maximum layout 1x1
maximum sessions 1
associate application SCCP
!

here are the test result with different codec

• OK - h264 qcif frame-rate 15 bitrate 128kbps
• OK - h264 cif frame-rate 15 bitrate 128kbps
• Fail - h264 cif frame-rate 30 bitrate 704kbps
• Fail - h264 vga frame-rate 30 bitrate 1mbps

When using the DSP calculator from Cisco.com,
1 video conference profile
number of session : 1
number of participants : 4
Conference type : Homogeneous - 1 class
H.264 VGA : Checked

It returns:

DSP Module Allocation:
Router Slot 0: 16 Video (25%) 4 Voice (7%) 44 Available (68%)
PVDM Slot 0/0: PVDM3-64

So, why I cannot use the VGA with PVDM3-64 ?

Thanks in advance

Sam

[Richard Bradfield]

is there enough bandwidth available to run 1Mbps video? QOS settings?

are you seeing below from 9971 9.2.1 release notes

One-Way Video Calls for the Cisco Unified IP Phone

Due to limitations in the H.264 video signaling standards, Cisco Unified IP Phones 9951 and 9971 may not correctly display video received from devices supporting resolutions greater than 640x480. In this case, the user will see a black video screen.

To insure that video from such devices is properly displayed on the IP phone, the best solution is to configure high definition phones and Cisco Unified IP Phone 8961, 9951, and 9971 into different call regions and limit the video bandwidth to 384 kb/s when calling between regions.

HTH

Richard

[samhopealpha]

thanks for the reply, and I re-try on w360p (that's with 9971 resolution)

codec h264 w360p frame-rate 30 bitrate 448kbps

it also fail to see the video (but it auto changed to audio conference - all parties)

[Ayodeji Okanlawon]

It looks like your problem is the frame rate you are selecting. Try and do it without the frame rate and the gateway will automatically select the default frame rate..Do it like below..

dspfarm profile 1 conference video homogeneous
codec g729br8
codec g729r8
codec g729abr8
codec g729ar8
codec h264 vga

[samhopealpha]

just tried

codec h264 vga 

and it auto generate the following configuration

codec h264 vga frame-rate 30 bitrate 1mbps

[Jaime Valencia · Accepted solution]

Be aware of this:

Feature Deprecation Announcement for Video Conferencing and Transcoding Using PVDM3 on ISR G2 Product Bulletin

http://www.cisco.com/c/en/us/products/collateral/unified-communications/tdm-gateways/bulletin-c25-735945.html

[samhopealpha]

Is that mean PVDM3 for video conferencing and transcoding on ISR is not recommended ?

[Jaime Valencia · Accepted solution]

It seems it was never really recommended, or supported, according to the doc, bear that in mind if you have issues and require TAC assistance.

you should start looking into vTP or TP on appliance servers