CUCM is only sending 4 digit to the gateway/telco

[sienz]

When are having some blocking calls when the phone is forwarded to an external number and called from an internal phone.

For example:
John’s phone is forwarded to 9-1-AAA-AAA-XXXX. Jane calls his phone by dialing 4 digit and Jane get a timeout tone. We did ISDN Q931 in the router and it is showing that the number that is being sent is only 4 digit (Invalid number format (incomplete number)).

Jane can call directly 9-1-AAA-AAA-XXXX and the router will show the call is sending 10 digit or complete number.

It is also happening when we have a route pattern.
We have 9411 to be routed to 1800GOOG411. The call will fail to since it is only sending the 4-dgit number from where the callers call 411. The debug also shows that the sending digit is only 4 digit instead 10 digit.

In the other side, we can call 1800GOOG411 directly from any phones.

Thanks,

sienz

 

[pndscm]

Make sure the CSS of the CFWD all can make an outside call. It may be restricted to on system calls only.

 

[sienz]

Can the phone company receive 4-digit instead of 10-digit?

I believe we did not make any changes in the system and it shows in the gateway that we are only sending 4 digit to telco when this happened.

 

[crash33]

use DNA (Dial Number Analyzer) to see how CUCM is processing the call.

there is nothing the phone company can do with 4-digits unless you have a dedicated tie line going to another phone system.