[cisco-voip] Integration cisco router 2911 with Ericsson pbx

[ANAS ALMOKAYYAD]

Dears 

I face a problem when i integrate 2911 e1 card with Ericsson pbx  in two different site to call each other through vpn 
I used isdn  qsig to integration  ....
Channels all up and i get tone from router but when i called another site its fail... 
when i debug the call it show me "invalid format number" incomplete number ... 
Any one have an idea about cause of this  error ...