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"Interworking" cause after call forward

Hello,

I have two Cisco 2811 routers. One of them is CCME, second is voice gateway connected to PBX with E1 PRI.

Situation is next: calling party (A) is placed on PBX, called party (B) is client of CCME and have ephone-dn like:

ephone-dn 100 dual-line

number 90108199 secondary 199

label 199

I put "call-forward all" on ephone-dn to number placed at PBX. It works perfectly.

Then I put "call-forward noan 90102279 timeout 3" (number 90102279 is routed to PBX). Now when A calls B and call forwarded by CCME back to PBX via gateway fails. Here is debug from gateway to PBX:

Sep 21 11:45:53.732 DST: ISDN Se0/0/0:15 Q931: Applying typeplan for sw-type 0x12 is 0x0 0x0, Calling num 90101104

Sep 21 11:45:53.736 DST: ISDN Se0/0/0:15 Q931: Applying typeplan for sw-type 0x12 is 0x0 0x0, Called num 279

Sep 21 11:45:53.736 DST: ISDN Se0/0/0:15 Q931: TX -> SETUP pd = 8 callref = 0x4381

Bearer Capability i = 0x8090A3

Standard = CCITT

Transfer Capability = Speech

Transfer Mode = Circuit

Transfer Rate = 64 kbit/s

Channel ID i = 0xA98382

Exclusive, Channel 2

Progress Ind i = 0x8183 - Origination address is non-ISDN

Display i = 'A. Shikov'

Calling Party Number i = 0x80, '90101104'

Plan:Unknown, Type:Unknown

Called Party Number i = 0x80, '279'

Plan:Unknown, Type:Unknown

Sep 21 11:45:53.840 DST: ISDN Se0/0/0:15 Q931: RX <- CALL_PROC pd = 8 callref = 0xC381

Channel ID i = 0xA98382

Exclusive, Channel 2

Sep 21 11:45:53.844 DST: ISDN Se0/0/0:15 Q931: RX <- ALERTING pd = 8 callref = 0xC381

Progress Ind i = 0x8182 - Destination address is non-ISDN

Sep 21 11:46:03.820 DST: ISDN Se0/0/0:15 Q931: RX <- CONNECT pd = 8 callref = 0xC381

Progress Ind i = 0x8182 - Destination address is non-ISDN

Connected Number i = '!', 0x80, '90102217'

Sep 21 11:46:03.824 DST: %ISDN-6-CONNECT: Interface Serial0/0/0:1 is now connected to 279 N/A

Sep 21 11:46:03.824 DST: ISDN Se0/0/0:15 Q931: TX -> CONNECT_ACK pd = 8 callref = 0x4381

Sep 21 11:46:03.872 DST: ISDN Se0/0/0:15 Q931: TX -> DISCONNECT pd = 8 callref = 0x4381

Cause i = 0x82FF - Interworking error; unspecified

Sep 21 11:46:03.900 DST: ISDN Se0/0/0:15 Q931: RX <- RELEASE pd = 8 callref = 0xC381

Sep 21 11:46:03.904 DST: ISDN Se0/0/0:15 Q931: TX -> RELEASE_COMP pd = 8 callref = 0x4381

In call history I see

1FA6 : 40984 1833034694ms.40963 +10110 +10120 pid:10 Answer 90101104

dur 00:00:00 tx:388/3880 rx:0/0 7F (interworking (127))

IP 10.0.53.254:18752 SRTP: off rtt:0ms pl:0/0ms lost:0/0/0 delay:70/70/70ms g729br8 TextRelay: off

media inactive detected:n media contrl rcvd:n/a timestamp:n/a

long duration call detected:n long dur callduration :n/a timestamp:n/a

1FA6 : 40983 1833031654ms.40964 +-1 +13170 pid:901081 Originate 90108199

dur 00:00:00 tx:0/0 rx:0/0 7F (interworking (127))

IP 10.0.53.254:19570 SRTP: off rtt:0ms pl:0/0ms lost:0/0/0 delay:0/0/0ms g729r8 TextRelay: off

media inactive detected:n media contrl rcvd:n/a timestamp:n/a

long duration call detected:n long dur callduration :n/a timestamp:n/a

1FA6 : 40982 1833031644ms.40965 +-1 +13210 pid:10 Answer 90101104

dur 00:00:00 tx:0/0 rx:0/0 7F (interworking (127))

IP 10.0.60.254:17264 SRTP: off rtt:0ms pl:0/0ms lost:0/0/0 delay:0/0/0ms g729r8 TextRelay: off

media inactive detected:n media contrl rcvd:n/a timestamp:n/a

long duration call detected:n long dur callduration :n/a timestamp:n/a

1FA6 : 40985 1833034814ms.40966 +9990 +10060 pid:901021 Originate 90102279

dur 00:00:00 tx:0/0 rx:776/7760 7F (interworking (127))

Tele 0/0/0:15 (40985) [0/0/0.2] tx:8870/5180/0ms g729br8 noise:-81dBm acom:6dBm

long duration call detected:n long dur callduration :n/a timestamp:n/a

Why call-forward all works but call-forward noan fails?!

Please, help! Thanks.

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