asterisk users - May 2010 - zap calls are getting dropped (unexpected disconnect message)

Hello,

I have a problem, and I'm looking for you help.
When I dial certain number my calls are getting dropped.

I initiate the call, I hear IVR, then I am being transfered to
operator, and then suddenly I get ISDN DISCONNECT message.

I had this type of problem some time ago, and I thought it was a
problem on the other end. But now this is a second time it occurred
and I want an expert to take a look at my ISDN logs.

Thanks!!!!


-- 
Regards,
Rustam Kovhaev
-------------- next part --------------
-- Making new call for cr 32801
    -- Requested transfer capability: 0x00 - SPEECH
> Protocol Discriminator: Q.931 (8)  len=39
> Call Ref: len= 2 (reference 33/0x21) (Originator)
> Message type: SETUP (5)
> [04 03 80 90 a3]
> Bearer Capability (len= 5) [ Ext: 1  Q.931 Std: 0  Info transfer
capability: Speech (0)
>                              Ext: 1  Trans mode/rate: 64kbps, circuit-mode
(16)
>                                User information layer 1: A-Law (35)
> [18 03 a9 83 81]
> Channel ID (len= 5) [ Ext: 1  IntID: Implicit  PRI  Spare: 0  Exclusive 
Dchan: 0
>                        ChanSel: As indicated in following octets
>                       Ext: 1  Coding: 0  Number Specified  Channel Type: 3
>                       Ext: 1  Channel: 1 ]
> [6c 0c 21 81 38 31 32 36 31 31 30 30 33 35]
> Calling Number (len=14) [ Ext: 0  TON: National Number (2)  NPI:
ISDN/Telephony Numbering Plan (E.164/E.163) (1)
>                           Presentation: Presentation permitted, user number
passed network screening (1)  '8126110035' ]
> [70 08 a1 33 30 33 39 30 32 30]
> Called Number (len=10) [ Ext: 1  TON: National Number (2)  NPI:
ISDN/Telephony Numbering Plan (E.164/E.163) (1)  '3039020' ]
q931.c:3128 q931_setup: call 32801 on channel 1 enters state 1 (Call Initiated)
    -- Called g1/3039020
< Protocol Discriminator: Q.931 (8)  len=10
< Call Ref: len= 2 (reference 33/0x21) (Terminator)
< Message type: CALL PROCEEDING (2)
< [18 03 a9 83 81]
< Channel ID (len= 5) [ Ext: 1  IntID: Implicit  PRI  Spare: 0  Exclusive 
Dchan: 0
<                        ChanSel: As indicated in following octets
<                       Ext: 1  Coding: 0  Number Specified  Channel Type: 3
<                       Ext: 1  Channel: 1 ]
-- Processing IE 24 (cs0, Channel Identification)
q931.c:3677 q931_receive: call 32801 on channel 1 enters state 3 (Outgoing call 
Proceeding)
    -- Zap/1-1 is proceeding passing it to SIP/2168-b5987ad0
< Protocol Discriminator: Q.931 (8)  len=9
< Call Ref: len= 2 (reference 33/0x21) (Terminator)
< Message type: ALERTING (1)
< [1e 02 84 88]
< Progress Indicator (len= 4) [ Ext: 1  Coding: CCITT (ITU) standard (0)  0:
0  Location: Public network serving the remote user (4)
<                               Ext: 1  Progress Description: Inband
information or appropriate pattern now available. (8) ]
-- Processing IE 30 (cs0, Progress Indicator)
q931.c:3590 q931_receive: call 32801 on channel 1 enters state 4 (Call
Delivered)
    -- Zap/1-1 is ringing
< Protocol Discriminator: Q.931 (8)  len=19
< Call Ref: len= 2 (reference 33/0x21) (Terminator)
< Message type: CONNECT (7)
< [4c 0c 21 83 38 31 32 33 30 31 39 33 38 39]
< Connected Number (len=14) [ Ext: 0  TON: National Number (2)  NPI:
ISDN/Telephony Numbering Plan (E.164/E.163) (1)
<                             Ext: 1  Presentation: Presentation allowed of
network provided number (3)  '8123019389' ]
-- Processing IE 76 (cs0, Connected Number)
q931.c:3620 q931_receive: call 32801 on channel 1 enters state 10
(Active)
> Protocol Discriminator: Q.931 (8)  len=5
> Call Ref: len= 2 (reference 33/0x21) (Originator)
> Message type: CONNECT ACKNOWLEDGE (15)
    -- Zap/1-1 answered SIP/2168-b5987ad0
[May 24 12:06:48] WARNING[2660]: chan_sip.c:13058 handle_response: Remote host
can't match request NOTIFY to call '722310664e5473b94355493f0cdd2326 at
172.16.0.2'. Giving up.
< Protocol Discriminator: Q.931 (8)  len=8
< Call Ref: len= 2 (reference 33/0x21) (Terminator)
< Message type: NOTIFY (110)
< [27 01 f9]
< Notification indicator (len= 3): Ext: 1  Remote hold (121)
-- Processing IE 39 (cs0, Notification Indicator)
    -- Started music on hold, class 'default', on channel
'SIP/2168-b5987ad0'
< Protocol Discriminator: Q.931 (8)  len=9
< Call Ref: len= 2 (reference 33/0x21) (Terminator)
< Message type: DISCONNECT (69)
< [08 02 80 90]
< Cause (len= 4) [ Ext: 1  Coding: CCITT (ITU) standard (0)  Spare: 0 
Location: User (0)
<                  Ext: 1  Cause: Normal Clearing (16), class = Normal Event
(1) ]
-- Processing IE 8 (cs0, Cause)
q931.c:3820 q931_receive: call 32801 on channel 1 enters state 12 (Disconnect
Indication)
    -- Channel 0/1, span 1 got hangup request, cause 16
NEW_HANGUP DEBUG: Calling q931_hangup, ourstate Disconnect Indication, peerstate
Disconnect Request
q931.c:2961 q931_release: call 32801 on channel 1 enters state 19 (Release
Request)
> Protocol Discriminator: Q.931 (8)  len=9
> Call Ref: len= 2 (reference 33/0x21) (Originator)
> Message type: RELEASE (77)
> [08 02 81 90]
> Cause (len= 4) [ Ext: 1  Coding: CCITT (ITU) standard (0)  Spare: 0 
Location: Private network serving the local user (1)
>                  Ext: 1  Cause: Normal Clearing (16), class = Normal Event
(1) ]
    -- Hungup 'Zap/1-1'
 == Spawn extension (main, 93039020, 3) exited non-zero on
'SIP/2168-b5987ad0'
    -- Stopped music on hold on SIP/2168-b5987ad0
< Protocol Discriminator: Q.931 (8)  len=5
< Call Ref: len= 2 (reference 33/0x21) (Terminator)
< Message type: RELEASE COMPLETE (90)
q931.c:3760 q931_receive: call 32801 on channel 1 enters state 0 (Null)
NEW_HANGUP DEBUG: Calling q931_hangup, ourstate Null, peerstate Null
NEW_HANGUP DEBUG: Destroying the call, ourstate Null, peerstate Null

pbx*CLI> exit