inbound calls without CLID - private vs unknown

[CAMERON GILLIES]

HI,

I am using CUCM 8.5, SIP trunks to voice gateways using E1 / T1 lines. We have noticed that at some sites inbound calls that come from private numbers are shown on the phone as coming from "unknown" at some other sites on the same cluster and coming from the same telco the calls are seen as "private". I need to standize the display across all sites but I can see where this display is generated...

Any advice would be great appreiciated !!

[islam.kamal]

please can you use this command

debug isdn q931 , and send the output.

Thank you

[CAMERON GILLIES]

thanks for your offer to help :-)

Feb  6 04:01:33.258: ISDN Se0/0/0:23 Q931: RX <- SETUP pd = 8  callref = 0x0047

        Bearer Capability i = 0x8090A2

                Standard = CCITT

                Transfer Capability = Speech 

                Transfer Mode = Circuit

                Transfer Rate = 64 kbit/s

        Channel ID i = 0xA193040000

                Preferred, Channel 4

        Calling Party Number i = 0x00C3, N/A

                Plan:Unknown, Type:Unknown

        Called Party Number i = 0x80, '2099103'

                Plan:Unknown, Type:Unknown

Feb  6 04:01:33.278: ISDN Se0/0/0:23 Q931: TX -> CALL_PROC pd = 8  callref = 0x8047

        Channel ID i = 0xA993040000

                Exclusive, Channel 4

Feb  6 04:01:33.370: ISDN Se0/0/0:23 Q931: TX -> ALERTING pd = 8  callref = 0x8047

I have confirmed that other sites also get the "N/A" in the "Calling Party Number" field.

Thanks,

Cameron

[islam.kamal]

Kindly find the below configuration , may be you missing the below

dial-peer voice 1 pots
 incoming called-number .
 direct-inward-dial
!
dial-peer voice 2 voip
 description Incoming voip calls
 incoming called-number .
 voice-class codec 1
 voice-class h323 1
 dtmf-relay h245-alphanumeric
 no vad

Configure CM so that calling number plan/type is ISDN/national.

Otherwise, telco may not acknowledge as valid DID.

Other than that,

Thank you

[islam.kamal]

the last thing , please mention the integration ( call flow ) , the existing devices in your network.The protocol ( MGCP or H323).

Thank you