T1 config

[jghadiali]

I am trying to configure a T1 which is an IPLC between US and India. The service provider is MCI Worldcom. The IPLC terminates on Cisco IGX WAN switches. The IGX is connected to my G3R r9 on a DS1 card configured as E1. The IPLC is a immed/immed e&m circuit, dial address as DTMF, both way with 10 digit DNIS on the toll free no.

Now the link is up but when i am dialling US number i get only silence on the line.

can someone help me?

 

[dimas]

Hi,
What ds1 country protocol do you use? For E1 country protocol "1"(USA)we have a different signaling as for T1 channel.

Did you try to play with signaling bit invertion on first page of the trunk group? Try to invert B bit.