Cisco Support Community
Showing results for 
Search instead for 
Did you mean: 
Community Member

CCM6 + VTAdvantage : use which video codec?


I'm tring to connect a CCM6 with a CCME4 with H323.

In the CCME, I've configured this :


voice service voip


call start slow


interface FastEthernet0/1

description Tamatave

ip address

duplex auto

speed auto

h323-gateway voip interface

h323-gateway voip bind srcaddr


dial-peer voice 201 voip

destination-pattern 8...

video codec h264

session target ipv4:

session transport udp

dtmf-relay h245-alphanumeric

codec g711ulaw




maximum bit-rate 900000

max-ephones 10

max-dn 10

ip source-address port 2000

auto assign 1 to 10

service phone videoCapability 1

system message ConnecTIC IP Everywhere

keepalive 45

max-conferences 4 gain -6

transfer-system full-consult



In the CCM6, i've just configured the H323 gateway.

In the Region, the video bandwidth is 384, and after 1000

REtry Video as Audio is checked.


Result :

Call from the CCME to CCM6:

The VTAdvantage windows is toggled on automaticaly : the local display image, but the remote does'nt.

The voice is Ok.

Question :

1. What is the codec used by CCM6 for video call?

2. How CCM6 Calculate the available bandwith?

I ask this because i'm on a LAN and the bandwitdh is 100Mbps.

So why there is no video?

3. If I call from the CCM6 to the CCME, the is no reaction with the VTAdvantage.

Can I configure the video codec used in the CCM6 ?

Best regards,

CreatePlease to create content