[cisco-voip] QSIG with Siemens PBX and DPNSS

[Omar Dahmani]

We are experiencing problems connecting a CUCM 7 with a Siemens PBX using 2
MGCP-Gateways with 1x E1 PRI each and QSIG protocol configured. 

Calls from the CUCM to the Siemens PBX and also to the PSTN through the
Siemens work.

 

The Siemens PBX also has other trunks using DPNSS and calls to destinations
on these DPNSS-trunks fail when using QSIG. When the call gets disconnected
the following message can be seen on the gateway.

 

---

000227: *Dec  9 15:20:39.331 GMT: ISDN Se0/1/0:15 Q931: TX -> SETUP pd = 8
callref = 0x0002 

                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 

                Facility i =
0x9FAA06800100820100A117020100060528EC2C0000800B536572766963654465736B 

                Calling Party Number i = 0x0081, '84096666' 

                               Plan:Unknown, Type:Unknown 

                Called Party Number i = 0x80, '84035125' 

                               Plan:Unknown, Type:Unknown

000228: *Dec  9 15:20:39.403 GMT: ISDN Se0/1/0:15 Q931: RX <- CALL_PROC pd =
8  callref = 0x8002 

                Channel ID i = 0xA98381 

                               Exclusive, Channel 1

000229: *Dec  9 15:20:39.863 GMT: ISDN Se0/1/0:15 Q931: RX <- FACILITY pd =
8  callref = 0x8002 

                Facility i =
0x9FAA068001008201008B0100A11402010306082B0C02885302010603050080000000 

                Facility i =
0x9FAA068001008201018B0100A12202010206082B0C02885302010030138211030F00000000
807E7FFF80060000008080 

                Facility i =
0x9FAA068001008201008B0100A113020101020155300B8209005C08000000000000

000230: *Dec  9 15:20:40.323 GMT: ISDN Se0/1/0:15 Q931: RX <- DISCONNECT pd
= 8  callref = 0x8002 

                Cause i = 0x81FF - Interworking error; unspecified 

                Facility i =
0x9FAA068001008201018B0100A12202010506082B0C02885302010030138211030F00000000
807E7FFF80060000008080 

                Facility i =
0x9FAA068001008201008B0100A113020104020155300B8209005C08000000000000

000231: *Dec  9 15:20:40.455 GMT: ISDN Se0/1/0:15 Q931: TX -> RELEASE pd = 8
callref = 0x0002

000232: *Dec  9 15:20:40.475 GMT: ISDN Se0/1/0:15 Q931: RX <- RELEASE_COMP
pd = 8  callref = 0x8002

---

 

Without QSIG everything works but it should also be possible with QSIG?

 

Any ideas?

 

 

Thanks,

Omar

 

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