Ahh, missed the part about CAS, sorry. 

So is the provider doing something on their side with the MAC of the E1 on your 
side? If the provider is sending 3 digits (regardless if it works on the other 
router) then it should be their issue.

You have the plan and type set according to what the provider expects?

Are you getting 3 digits for the calling or called party?

From: jason.aar...@dimensiondata.com
To: ryanh...@outlook.com; cisco-voip@puck.nether.net
Subject: RE: [cisco-voip] E1 CAS card in Mexico not getting enough digits
Date: Sun, 16 Nov 2014 19:56:50 +0000









CAS no q931
 
Debug shows on bad router we receive 3 digits from provider, move circuit to 
another router we receive 4 digits from provider.
 


From: Ryan Huff [mailto:ryanh...@outlook.com]


Sent: Sunday, November 16, 2014 8:52 AM

To: Jason Aarons (AM); cisco-voip@puck.nether.net

Subject: RE: [cisco-voip] E1 CAS card in Mexico not getting enough digits


 
 

So on router B, do the following and then place an inbound call from a known 
number:



hostname# conf t

hostname (config)# logging console 

hostname (config)# exit

hostname# term mon 

hostname# debug isdn q931



What do you see for "Calling Party Number i =", "Plan:" and "Type:"? The "plan" 
and "type" fields should be located below the "calling party  number" field. 
Once you've determined that you really are receiving 4 digits from the telco on 
that circuit the next
 step is to figure out what in the router config is stripping the digit. If you 
find that you are not receiving 4 digits from the telco, you can either work 
with the telco to fix it on the PRI or if the missing digit is a constant, you 
can add it with an inbound
 voice translation rule.



Look at your inbound dial peers; do you have any voice translation rules that 
are doing any digit stripping? Are the inbound voice translations using 
different regex than on the router that is working and if so, what is different?



Thanks,



Ryan Huff

CCIE Collaboration (Written), CCNP Voice, CCNA Voice

CCNA Route/Switch, CCNA Wireless, UCCX Specialist



From: 
jason.aar...@dimensiondata.com

To: cisco-voip@puck.nether.net

Date: Sun, 16 Nov 2014 08:18:22 +0000

Subject: [cisco-voip] E1 CAS card in Mexico not getting enough digits

I have a problem with a E1 CAS site in Mexico.  I have two routers. Router B is 
problem.  
 
In router A I see 4 digits come in on DTMF.  
In router B I see 3 digits come in on DTMF. We are missing 1 digit.
 
I swap the circuit and works fine in router A.  Same IOS both routers.
 
Controller e1 0/0/0
   Framing NO-CRC4
   dso-group 0 timeslots 1-10 type r2-digital dtmf dnis
   cas-custom 0
   Country telmex
   Seizure-ackt-time 2
 
 
 
 



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