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New Member

MGCP Gateway Error

Hello 

i have a weired issue while changing the system to IPT. i am getting inter networking error while calling to mobile number specifically. 

My Scenario is 

CUCM 11.0 ---- MGCP Gateway ---- PSTN

i have 3 route patterns . 1 for landline and mobile calls as its 8 digits, 1 for International and 1 for 3 digits information number. my problem is when i am calling only on mobiles it gives me below error. debug isdn q931 

Bearer Capability i = 0x8090A2
Standard = CCITT
Transfer Capability = Speech
Transfer Mode = Circuit
Transfer Rate = 64 kbit/s
Channel ID i = 0xA98381
Exclusive, Channel 1
Display i = 'Reception'
Calling Party Number i = 0x0081, '17214490'
Plan:Unknown, Type:Unknown
Called Party Number i = 0x80, '36613334'
Plan:Unknown, Type:Unknown
003772: Aug 21 16:44:08.584: ISDN Se0/0/0:15 Q931: RX <- CALL_PROC pd = 8 callref = 0x800C
Channel ID i = 0xA98381
Exclusive, Channel 1
003773: Aug 21 16:44:09.024: ISDN Se0/0/0:15 Q931: RX <- DISCONNECT pd = 8 callref = 0x800C
Cause i = 0x82FF - Interworking error; unspecified
003774: Aug 21 16:44:09.056: ISDN Se0/0/0:15 Q931: TX -> RELEASE pd = 8 callref = 0x000C
003775: Aug 21 16:44:09.172: ISDN Se0/0/0:15 Q931: RX <- RELEASE_COMP pd = 8 callref = 0x800C
003776: Aug 21 16:44:28.576: ISDN Se0/0/0:15 Q931: TX -> SETUP pd = 8 callref = 0x000D

if i am connecting PRI back to old PABX, its working fine

any help or anyone faced this before.

Everyone's tags (4)
1 ACCEPTED SOLUTION

Accepted Solutions

Try changing the below under

Try changing the below under the Route Pattern (Called Party Transformations) for the National and Mobile calls to :

Called Party Number Type* to "National"

Called Party Numbering Plan * TO "ISDN"

Reset the gateway and make another test call in the debug isdn q931 it should show you

Called Party Number i = 0x80, '36613334'
Plan:Unknown, Type:Unknown << this should be updated National and ISDN here

Test both your Landline and Mobile after making the change.

-Terry

Please rate all helpful posts

6 REPLIES

Try changing the below under

Try changing the below under the Route Pattern (Called Party Transformations) for the National and Mobile calls to :

Called Party Number Type* to "National"

Called Party Numbering Plan * TO "ISDN"

Reset the gateway and make another test call in the debug isdn q931 it should show you

Called Party Number i = 0x80, '36613334'
Plan:Unknown, Type:Unknown << this should be updated National and ISDN here

Test both your Landline and Mobile after making the change.

-Terry

Please rate all helpful posts

New Member

Hello Terry

Hello Terry

will it give any difference in gcc countries.  i guess its mainly problem in US where they r not accepting tht... 

with the same pattern landline is going which starts from 17xxxxxx n mob 3xxxxxxx

i can even try this aftr office hrs 

In fact 'interworking error;

In fact 'interworking error; unspecified' is difficult to troubleshoot. But let's try to under the call flow.

Is this direct call or transferred?

What codec is being used on the voip call leg.

New Member

its a direct call from Phone

its a direct call from Phone to PSTN landline or Mobile ...

Can You post output from

Can You post output from Working Call for Comparision.

Try Below

1) Try to Insert MTP in the Path and test.

2) Try to set the Plan and Type properly and test. You can set this in Route Patter/Route List Level in CUCM.

3) Also talk to your telco see if there is some issue on their side.

Thanks

Please Rate and Mark correct as applicable

New Member

here is ok call

here is ok call

Bearer Capability i = 0x8090A2
Standard = CCITT
Transfer Capability = Speech
Transfer Mode = Circuit
Transfer Rate = 64 kbit/s
Channel ID i = 0xA98381
Exclusive, Channel 1
Display i = 'Reception'
Calling Party Number i = 0x0081, '2000'
Plan:Unknown, Type:Unknown
Called Party Number i = 0x80, '17711722'
Plan:Unknown, Type:Unknown
003115: Aug 21 16:23:42.008: ISDN Se0/0/0:15 Q931: RX <- CALL_PROC pd = 8 callref = 0x8003
Channel ID i = 0xA98381
Exclusive, Channel 1
003116: Aug 21 16:23:42.376: ISDN Se0/0/0:15 Q931: RX <- ALERTING pd = 8 callref = 0x8003
Progress Ind i = 0x8288 - In-band info or appropriate now available
003117: Aug 21 16:23:42.488: ISDN Se0/0/0:15 Q931: RX <- CONNECT pd = 8 callref = 0x8003
Date/Time i = 0x100815131730
Date (dd-mm-yr) = 16-08-21
Time (hr:mnt:sec) = 19:23:48
003118: Aug 21 16:23:42.488: ISDN Se0/0/0:15 Q931: TX -> CONNECT_ACK pd = 8 callref = 0x0003
003119: Aug 21 16:23:45.312: ISDN Se0/0/0:15 Q931: TX -> DISCONNECT pd = 8 callref = 0x0003
Cause i = 0x8090 - Normal call clearing
003120: Aug 21 16:23:45.396: ISDN Se0/0/0:15 Q931: RX <- RELEASE pd = 8 callref = 0x8003
003121: Aug 21 16:23:45.416: ISDN Se0/0/0:15 Q931: TX -> RELEASE_COMP pd = 8 callref = 0x0003
003122: Aug 21 16:23:49.772: ISDN Se0/0/0:15 Q931: TX -> SETUP pd = 8 callref = 0x0004
Sending Complete

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