Incoming call not landing on IP phones using CUCM

[Mayank Nauni]

Hi all,

I am facing an issue; the incoming calls are not landing on the IP phones using the CUCM, below is the debug for the same and it shows the cause as Unallocation/Unassigned number.

I checked the config of Gateway, route pattern, partitions and CSS but seems to be ok.

.Jan  3 17:01:44.977: ISDN Se0/0/0:15 Q921: User RX <- INFO sapi=0 tei=0, ns=93 nr=117
.Jan  3 17:01:44.977: ISDN Se0/0/0:15 Q931: SETUP pd = 8  callref = 0x017B
         Sending Complete
         Bearer Capability i = 0x8090A3
                 Standard = CCITT
                 Transfer Capability = Speech
                 Transfer Mode = Circuit
                 Transfer Rate = 64 kbit/s
         Channel ID i = 0xA98381
                 Exclusive, Channel 1
         Calling Party Number i = 0x0083, '0162508156'
                 Plan:Unknown, Type:Unknown
         Called Party Number i = 0x81, '1065'
                 Plan:ISDN, Type:Unknown
.Jan  3 17:01:44.981: ISDN Se0/0/0:15 Q921: User TX -> RR sapi=0 tei=0 nr=94
.Jan  3 17:01:44.981: ISDN Se0/0/0:15 Q931: Received SETUP  callref = 0x817B callID = 0x00F5 switch = primary-net5 interface = User
.Jan  3 17:01:44.985: ISDN Se0/0/0:15 Q921: User TX -> INFO sapi=0 tei=0, ns=117 nr=94
.Jan  3 17:01:44.985: ISDN Se0/0/0:15 Q931: CALL_PROC pd = 8  callref = 0x817B
         Channel ID i = 0xA98381
                 Exclusive, Channel 1
.Jan  3 17:01:44.985: ISDN Se0/0/0:15 Q921: User TX -> INFO sapi=0 tei=0, ns=118 nr=94
.Jan  3 17:01:44.985: ISDN Se0/0/0:15 Q931: DISCONNECT pd = 8  callref = 0x817B
         Cause i = 0x8081 - Unallocated/unassigned number
.Jan  3 17:01:44.993: ISDN Se0/0/0:15 Q921: User RX <- RR sapi=0 tei=0 nr=118
.Jan  3 17:01:44.997: ISDN Se0/0/0:15 Q921: User RX <- RR sapi=0 tei=0 nr=119
.Jan  3 17:01:45.037: ISDN Se0/0/0:15 Q921: User RX <- INFO sapi=0 tei=0, ns=94 nr=119
.Jan  3 17:01:45.037: ISDN Se0/0/0:15 Q931: RELEASE pd = 8  callref = 0x017B
.Jan  3 17:01:45.037: ISDN Se0/0/0:15 Q921: User TX -> RR sapi=0 tei=0 nr=95

Any suggestions?

Regards,

Mayank

[Gajanan Pande]

Mayank,

Is it a new config or old config ?

If it was working before & not working now, check if the incoming dial-peer config is changed on gateway ?

It appears that you have DID range ( 1065 being part of it ) & the telco is just sending last 4 digits to the gateway & gateway is not able locate the number. DP config needs to be checked ?

GP.

[Mayank Nauni]

Hi Mr. Pande,

It is a new config and it never worked.  Let me check the same with the telco and will also copy the dial peer config  here for more suggestions around it.

Regards,

Mayank 

[Gajanan Pande]

If you took DID range, then I dont see any issue at Telco side, they are sending digits as they should.

GP.

[Mayank Nauni]

Yes you are right.. even I dont see an issue with the telco end.

[Gajanan Pande]

Forgot to ask, what type of gateway protocol is being used ? My above explaination holds good for H.323.

GP.

[Mayank Nauni]

Hi Mr. Pandey,

The gateway is H.323

Mayank

[Gajanan Pande]

Cool. Let us know the dial-peer config.

GP.

[Mayank Nauni]

posting it in another 3 - 4 minutes... thanks for the help

[Mayank Nauni]

config attached for your reference.

[Gajanan Pande]

I'll be travelling, would respond after couple of hours. Others might also help you here.

GP.

[Mayank Nauni]

thanks again for your help.

[Gajanan Pande]

An important VOIP dial-peer is missing from the config or you can modify the existing VOIP dial-peer as below..

dial-peer voice x voip     ------------------> x is just the dial-peer Tag e.g. 1,2, 3 etc...

destination-pattern 1... ------------------> This is to represent your DID range.

session target ipv4:10.3.3.11 --------------------> This is your callmanager

voice-class codec 100 

dtmf-relay h245-alphanumeric

no vad

If you let me know your DID range, I can get back with precise config.

GP.

[Mayank Nauni]

thanks ... I will share the DID range shortly with you

[Mayank Nauni]

Hi,

The required information is as under :-

The ISDN onramp has 600 DIDs allocated. The allocation is +60 3 2773 1000 to 1599. Number for external extension is 8.