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Caller ID and Q931 debug

Hi,

I am simply trying to let Call Manager (6.1) set the outbound caller ID rather than the Carrier fixing it..

I requested the Carrier stop messing with Caller ID and let through whatever we set.  They claim to have done this.

All external calls are now showing as "blocked" however..

An ISDN Q931 debug on our 2811 gateway is below.   Does the debug indicate we are sending the Calling Party Number to the Carrier correctly ?

Sending Complete
        Bearer Capability i = 0x8090A3
                Standard = CCITT
                Transfer Capability = Speech 
                Transfer Mode = Circuit
                Transfer Rate = 64 kbit/s
        Channel ID i = 0xA9839F
                Exclusive, Channel 31
        Calling Party Number i = 0x0081, '0748239231'
                Plan:Unknown, Type:Unknown
        Called Party Number i = 0x80, '0419736842'
                Plan:Unknown, Type:Unknown
Mar  9 10:10:44: ISDN Se0/0/0:15 Q931: RX <- CALL_PROC pd = 8  callref = 0x94C5
        Channel ID i = 0xA9839F
                Exclusive, Channel 31


Any assistance appreciated.

Matt.

4 REPLIES
Cisco Employee

Re: Caller ID and Q931 debug

This is what you're sending:

        Calling Party Number i = 0x0081, '0748239231'

If the other end receives something else, something in between is changing it.

Many carriers do not accept something that is not within your DID range and modify it.

If the above phone number is valid then reach telco for some live debugging.

HTH

java

If this helps, please rate

www.cisco.com/go/pdihelpdesk

HTH

java

if this helps, please rate

www.cisco.com/go/pdi
Silver

Re: Caller ID and Q931 debug

Hello Matt,

By sending the Plan and Type marked as unknown you are forcing the TELCO to look into all their tables (Subscriber, Long Distance, Internationall) so the call will go through as long as it is properly formatted, the TELCO should then display CLID of 0748239231, have you tried changing the Calling Party Plan and Type to CallManager (This will work as long as you are using the 9.@ Route Pattern and your country dial plan)?. I had a few issues where the TELCO blocks CLID if the call is not being tagged.

        Calling Party Number i = 0x0081, '0748239231'
                Plan:Unknown, Type:Unknown
        Called Party Number i = 0x80, '0419736842'
                Plan:Unknown, Type:Unknown

Hope this helps!

-- espereir

Hall of Fame Super Gold

Re: Caller ID and Q931 debug

Calling Party Number i = 0x0081, '0748239231'

Does this number belongs to you ? Otherwise, as java indicated, you cannot expect it to show anywhere.

New Member

Re: Caller ID and Q931 debug

In this case despite a previous denial from the carrier, a fault was found on their end restricing Caller ID..

thanks for your assistance.

Matt

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