03-20-2013 11:49 AM - edited 03-16-2019 04:22 PM
Hello everyone,
Is it possible to Multicast Robbed-bit signaling?
The configuration bellow allows me to bridge three voice-ports always on connection within one gateway, but unable to transmit robbed-bit signaling. It works great with p2p connection. Any ideas anyone?
controller T1 0/2/0
framing SF
linecode ami
cablelength short 133
ds0-group 0 timeslots 1 type e&m-immediate-start
ds0-group 1 timeslots 2 type e&m-immediate-start
ds0-group 2 timeslots 3 type e&m-immediate-start
!
voice-port 0/2/0:0
timeouts call-disconnect 3
connection trunk 1000
!
voice-port 0/2/0:1
timeouts call-disconnect 3
connection trunk 1001
!
voice-port 0/2/0:2
timeouts call-disconnect 3
connection trunk 1002
!
dial-peer voice 1000 pots
destination-pattern 1000
port 0/2/0:0
!
dial-peer voice 1001 pots
destination-pattern 1001
port 0/2/0:1
!
dial-peer voice 1002 pots
destination-pattern 1002
port 0/2/0:2
!
dial-peer voice 6 voip
destination-pattern 1001
session protocol multicast
session target ipv4:237.11.0.11:22222
codec g711ulaw
vad aggressive
!
dial-peer voice 7 voip
destination-pattern 1002
session protocol multicast
session target ipv4:237.11.0.11:22222
codec g711ulaw
vad aggressive
!
dial-peer voice 5 voip
destination-pattern 1000
session protocol multicast
session target ipv4:237.11.0.11:22222
codec g711ulaw
vad aggressive
!
Thank you all.
03-20-2013 12:03 PM
Voice multicast (hoot'n holler) is a special configuration that only works for the designed application. It is not done simply configuring "session protocol multicast". Refer to the configuration guid.
http://www.cisco.com/en/US/docs/ios/12_2/voice/configuration/guide/vvfhhip.html
03-20-2013 12:42 PM
Paolo, thank you for the link, but it does not give me a clear answer to my question. My Cisco T1 interface is connected to a turret T1 interface system with speakers and microphone. Turret has separate key to send signaling (ABCD bits = 0000). The configuration that I have already allows me to talk over three channels on a turret, but signaling does not work. Can you please provide configuration example to set this up? Thank you.
03-20-2013 12:48 PM
I can only refer you to the configuration examples in the document, some of which it seems to me that you are missing.
Also, I think that Hoot'n holler will not transport signalling, but just media under the very specific application requirements.
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