Problem with incomming call and low quality of connection

[WCHPikus]

Hello!
I connected Cisco and C11 via T1, but I have some probelms with this.
Outgoing call working fine, but incomming call not.
We have 3 digits extension, the router send 3 digits in setup in the D channel, but PBX sending info "Incopatibile destinations".
The provider don't no, why the PBX can't redirect this call to extension.
Could someone tall me, where i have to check LD?
What is wrong?

The second question, if we call from PBX, we have connections, but with low qouality of voice (some noise and crack)
If view for some problems with codec q.711 not work correctly? Mayby options A-low or M-low?
Please Help.
WCHPikus
WCHPikus@yahoo.com

 

[johnpoole]

might try qos commands in load 117

john poole
bellsouth business
columbia,sc

 

[WCHPikus]

Hello!
Everything is working fine.
This was a problem with protocol and codec.
After change to m-low, T1 working without problem.
Thanks all for help, this forum is the best what I found
One again big Thanks.
Regards.
WCHPikus

 

[johnpoole]

this sounds voip as opposed to pri, since the post i have a pri's to ccm and it went in very clean. did you have a codec miss match and/or a qos problem

john poole
bellsouth business
columbia,sc