Sample pri debug for a bad number: You can see that the PROGRESS message is missing and only IE 30 appears after the ALERTING message.


> Protocol Discriminator: Q.931 (8)  len=64
> Call Ref: len= 2 (reference 4/0x4) (Originator)
> Message type: SETUP (5)
> [04 03 80 90 a2]
> Bearer Capability (len= 5) [ Ext: 1  Q.931 Std: 0  Info transfer capability: Speech (0)
>                              Ext: 1  Trans mode/rate: 64kbps, circuit-mode (16)
>                              Ext: 1  User information layer 1: u-Law (34)
> [18 03 a9 83 81]
> Channel ID (len= 5) [ Ext: 1  IntID: Implicit, PRI Spare: 0, Exclusive Dchan: 0
>                        ChanSel: Reserved
>                       Ext: 1  Coding: 0   Number Specified   Channel Type: 3
>                       Ext: 1  Channel: 1 ]
> [28 13 b1 54 72 65 6e 64 77 65 73 74 20 52 65 73 6f 72 74 73 20]
> Display (len=19) Charset: 31 [ Trendwest Resorts  ]
> [6c 0c 21 83 38 37 37 35 39 38 30 35 31 31]
> Calling Number (len=14) [ Ext: 0  TON: National Number (2)  NPI: ISDN/Telephony Numbering Plan (E.164/E.163) (1)
>                           Presentation: Presentation allowed of network provided number (3) '8775980511' ]
> [70 0c a1 31 35 30 39 39 34 36 31 33 30 30]
> Called Number (len=14) [ Ext: 1  TON: National Number (2)  NPI: ISDN/Telephony Numbering Plan (E.164/E.163) (1) '15099461300' ]
< Protocol Discriminator: Q.931 (8)  len=10
< Call Ref: len= 2 (reference 4/0x4) (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: Reserved
<                       Ext: 1  Coding: 0   Number Specified   Channel Type: 3
<                       Ext: 1  Channel: 1 ]
-- Processing IE 24 (cs0, Channel Identification)
< Protocol Discriminator: Q.931 (8)  len=9
< Call Ref: len= 2 (reference 4/0x4) (Terminator)
< Message type: ALERTING (1)
< [1e 02 81 88]
< Progress Indicator (len= 4) [ Ext: 1  Coding: CCITT (ITU) standard (0) 0: 0   Location: Private network serving the local user (1)
<                               Ext: 1  Progress Description: Inband information or appropriate pattern now available. (8) ]
-- Processing IE 30 (cs0, Progress Indicator)
NEW_HANGUP DEBUG: Calling q931_hangup, ourstate Call Delivered, peerstate Call Received
> Protocol Discriminator: Q.931 (8)  len=9
> Call Ref: len= 2 (reference 4/0x4) (Originator)
> Message type: DISCONNECT (69)
> [08 02 81 90]
> Cause (len= 4) [ Ext: 1  Coding: CCITT (ITU) standard (0) 0: 0   Location: Private network serving the local user (1)
>                  Ext: 1  Cause: Unknown (16), class = Normal Event (1) ]
< Protocol Discriminator: Q.931 (8)  len=5
< Call Ref: len= 2 (reference 4/0x4) (Terminator)
< Message type: RELEASE (77)
NEW_HANGUP DEBUG: Calling q931_hangup, ourstate Null, peerstate Release Request
> Protocol Discriminator: Q.931 (8)  len=9
> Call Ref: len= 2 (reference 4/0x4) (Originator)
> Message type: RELEASE COMPLETE (90)
> [08 02 81 90]
> Cause (len= 4) [ Ext: 1  Coding: CCITT (ITU) standard (0) 0: 0   Location: Private network serving the local user (1)
>                  Ext: 1  Cause: Unknown (16), class = Normal Event (1) ]
NEW_HANGUP DEBUG: Calling q931_hangup, ourstate Null, peerstate Null
NEW_HANGUP DEBUG: Destroying the call, ourstate Null, peerstate Null