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Cause i = 0x8081 - Unallocated/unassigned number with cucm and 3845

The CUCM my company is interconnected to the network of a telecom operator with a link QSIG E1.

Our internal network we can call external numbers via the QSIG link. But we can not receive the calls from operator through this link.

debug q931 give me:

Jul 16 14:05:24.939: ISDN Se3/1:15 Q931: RX <- SETUP pd = 8 callref = 0x008E

Sending Complete

Bearer Capability i = 0x8090A3

Standard = CCITT

Transfer Capability = Speech

Transfer Mode = Circuit

Transfer Rate = 64 kbit/s

Channel ID i = 0xA18389

Preferred, Channel 9

Calling Party Number i = 0x2183, '7723693'

Plan:ISDN, Type:National

Called Party Number i = 0xA1, '2607'

Plan:ISDN, Type:National

Jul 16 14:05:24.943: ISDN Se3/1:15 Q931: TX -> RELEASE_COMP pd = 8 callref = 0x808E

Cause i = 0x8081 - Unallocated/unassigned number

Jul 16 14:05:25.935: ISDN Se3/1:15 Q931: RX <- ALERTING pd = 8 callref = 0x8146

Progress Ind i = 0x8488 - In-band info or appropriate now available

The operator can send me that 4 digit which is normal. The number called, 2607, are on my call manager

my gateway:


controller E1 3/1

pri-group timeslots 1-31 service mgcp

description ZAIN



interface Serial3/1:15

no ip address

encapsulation hdlc

isdn switch-type primary-qsig

isdn incoming-voice voice

isdn bind-l3 ccm-manager

no cdp enable



voice-port 3/1:15

cptone FR


Please help me

Hall of Fame Super Silver

Re: Cause i = 0x8081 - Unallocated/unassigned number with cucm a

Hello Gautien,

if you haven't already done

post it under unified communications /ip telephony where you can find true voice experts (someone like Paolo follows also WAN forum but I'm not sure about the others)

Hope to help


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