[asterisk-users] ISDN Cause Code 47 Errors

Richard Mudgett rmudgett at digium.com
Wed Jan 22 11:27:39 CST 2014


On Mon, Jan 20, 2014 at 5:16 PM, Dale Noll <dnoll at wi.rr.com> wrote:

> We fairly recently switched service providers for our 4 PRI circuits.
> Since that time, we started to notice some failed inbound calls. These
> calls terminate with an ISDN cause code 47 'resource unavailble'. Most of
> the time I see this error on the first or second channel on the second span
> in a trunk group (This is the providers trunk group for hunting, not an
> Asterisk trunk group).  All the PRIs are setup as individual spans, we are
> not using NFAS. If the provider sets the hunt method to 'least recently
> used channel', then I can receive calls on other channels on the secondary
> span, it is just the first 2 that consistently fail.
>
> We have had occasion where the error occurs on first span. If enough calls
> come in at the same time, callers who happen to land on channel 3 or above
> are OK. When the problem happens on the first span, if we physically
> disconnect the first span(RED alarm), the calls hunt to the second span and
> all calls seem to process properly. The only way to clear the cause 47
> errors from the first span is a power cycle on the provider equipment.
> Power cycling my equipment does not solve the problem, only when I cycle
> their equipment.
>
> The provider says the cause 47 is coming from my equipment, yet the 'core
> set debug on' log, unless I am reading it wrong, says it is coming from
> their side.
>
> I have a second server as a backup. Both servers have identical hardware
> and software. When switching to the backup server, the problem remains.
>
> I had the same setup on the previous provider, except using NFAS, and did
> not have this problem.
>
> Am I reading the log correctly?
>

Yes.  Asterisk has accepted the selected channel and CONNECTed the
call.  It is the peer that is disconnecting the call with cause 47.  This
really
appears to be a problem in the providers equipment.


> Do I have something setup incorrectly?
>

I don't see anything wrong.


> Is there any way to get even lower level debugging on the PRI?
>

Not really.  The problem is at layer 3 (Q.931) not layer 2 (Q.921).
Turning on
intense PRI debug will add nothing but noise to the debug log.

<snip>

=======================
> Log sample with ISDN debug on
> =======================
> [Jan 14 12:56:04] VERBOSE[13262] chan_dahdi.c: [Jan 14 12:56:04] PRI Span:
> 4
> [Jan 14 12:56:04] VERBOSE[13262] chan_dahdi.c: [Jan 14 12:56:04] PRI Span:
> 4 < Protocol Discriminator: Q.931 (8)  len=87
> [Jan 14 12:56:04] VERBOSE[13262] chan_dahdi.c: [Jan 14 12:56:04] PRI Span:
> 4 < TEI=0 Call Ref: len= 2 (reference 6918/0x1B06) (Sent from originator)
> [Jan 14 12:56:04] VERBOSE[13262] chan_dahdi.c: [Jan 14 12:56:04] PRI Span:
> 4 < Message Type: SETUP (5)
> [Jan 14 12:56:04] VERBOSE[13262] chan_dahdi.c: [Jan 14 12:56:04] PRI Span:
> 4 < [04 03 80 90 a2]
> [Jan 14 12:56:04] VERBOSE[13262] chan_dahdi.c: [Jan 14 12:56:04] PRI Span:
> 4 < Bearer Capability (len= 5) [ Ext: 1  Coding-Std: 0  Info transfer
> capability: Speech (0)
> [Jan 14 12:56:04] VERBOSE[13262] chan_dahdi.c: [Jan 14 12:56:04] PRI Span:
> 4 <                              Ext: 1  Trans mode/rate: 64kbps,
> circuit-mode (16)
> [Jan 14 12:56:04] VERBOSE[13262] chan_dahdi.c: [Jan 14 12:56:04] PRI Span:
> 4 <                                User information layer 1: u-Law (34)
> [Jan 14 12:56:04] VERBOSE[13262] chan_dahdi.c: [Jan 14 12:56:04] PRI Span:
> 4 < [18 03 a9 83 82]
> [Jan 14 12:56:04] VERBOSE[13262] chan_dahdi.c: [Jan 14 12:56:04] PRI Span:
> 4 < Channel ID (len= 5) [ Ext: 1  IntID: Implicit  Other(PRI)  Spare: 0
>  Exclusive  Dchan: 0
> [Jan 14 12:56:04] VERBOSE[13262] chan_dahdi.c: [Jan 14 12:56:04] PRI Span:
> 4 <                       ChanSel: As indicated in following octets
> [Jan 14 12:56:04] VERBOSE[13262] chan_dahdi.c: [Jan 14 12:56:04] PRI Span:
> 4 <                       Ext: 1  Coding: 0  Number Specified  Channel
> Type: 3
> [Jan 14 12:56:04] VERBOSE[13262] chan_dahdi.c: [Jan 14 12:56:04] PRI Span:
> 4 <                       Ext: 1  Channel: 2 Type: CPE]
> [Jan 14 12:56:04] VERBOSE[13262] chan_dahdi.c: [Jan 14 12:56:04] PRI Span:
> 4 < [1c 1d 9f 8b 01 00 a1 17 02 01 1f 02 01 00 80 0f 43 65 6c 6c 20 50 68
> 6f 6e 65 20 20 20 57 49]
> [Jan 14 12:56:04] VERBOSE[13262] chan_dahdi.c: [Jan 14 12:56:04] PRI Span:
> 4 < Facility (len=31, codeset=0) [ 0x9F, 0x8B, 0x01, 0x00, 0xA1, 0x17,
> 0x02, 0x01, 0x1F, 0x02, 0x01, 0x00, 0x80, 0x0F, 'Cell Phone   WI' ]
> [Jan 14 12:56:04] VERBOSE[13262] chan_dahdi.c: [Jan 14 12:56:04] PRI Span:
> 4 < [28 0f 43 65 6c 6c 20 50 68 6f 6e 65 20 20 20 57 49]
> [Jan 14 12:56:04] VERBOSE[13262] chan_dahdi.c: [Jan 14 12:56:04] PRI Span:
> 4 < Display (len=15) [ Cell Phone   WI ]
> [Jan 14 12:56:04] VERBOSE[13262] chan_dahdi.c: [Jan 14 12:56:04] PRI Span:
> 4 < [6c 0c 21 80 34 31 34 33 33 31 32 34 37 30]
> [Jan 14 12:56:04] VERBOSE[13262] chan_dahdi.c: [Jan 14 12:56:04] PRI Span:
> 4 < Calling Number (len=14) [ Ext: 0  TON: National Number (2)  NPI:
> ISDN/Telephony Numbering Plan (E.164/E.163) (1)
> [Jan 14 12:56:04] VERBOSE[13262] chan_dahdi.c: [Jan 14 12:56:04] PRI Span:
> 4 <                           Presentation: Presentation permitted, user
> number not screened (0)  'NPANXXXXXX' ]
> [Jan 14 12:56:04] VERBOSE[13262] chan_dahdi.c: [Jan 14 12:56:04] PRI Span:
> 4 < [70 08 c1 33 34 34 36 37 31 31]
> [Jan 14 12:56:04] VERBOSE[13262] chan_dahdi.c: [Jan 14 12:56:04] PRI Span:
> 4 < Called Number (len=10) [ Ext: 1  TON: Subscriber Number (4)  NPI:
> ISDN/Telephony Numbering Plan (E.164/E.163) (1)  '3446711' ]
> [Jan 14 12:56:04] VERBOSE[13262] chan_dahdi.c: [Jan 14 12:56:04] PRI Span:
> 4 -- Making new call for cref 6918
> [Jan 14 12:56:04] VERBOSE[13262] chan_dahdi.c: [Jan 14 12:56:04] PRI Span:
> 4 Received message for call 0xb750d598 on link 0x9b33f2c TEI/SAPI 0/0
> [Jan 14 12:56:04] VERBOSE[13262] chan_dahdi.c: [Jan 14 12:56:04] PRI Span:
> 4 -- Processing Q.931 Call Setup
> [Jan 14 12:56:04] VERBOSE[13262] chan_dahdi.c: [Jan 14 12:56:04] PRI Span:
> 4 -- Processing IE 4 (cs0, Bearer Capability)
> [Jan 14 12:56:04] VERBOSE[13262] chan_dahdi.c: [Jan 14 12:56:04] PRI Span:
> 4 -- Processing IE 24 (cs0, Channel Identification)
> [Jan 14 12:56:04] VERBOSE[13262] chan_dahdi.c: [Jan 14 12:56:04] PRI Span:
> 4 -- Processing IE 28 (cs0, Facility)
> [Jan 14 12:56:04] VERBOSE[13262] chan_dahdi.c: [Jan 14 12:56:04] PRI Span:
> 4 -- Processing IE 40 (cs0, Display)
> [Jan 14 12:56:04] VERBOSE[13262] chan_dahdi.c: [Jan 14 12:56:04] PRI Span:
> 4 -- Processing IE 108 (cs0, Calling Party Number)
> [Jan 14 12:56:04] VERBOSE[13262] chan_dahdi.c: [Jan 14 12:56:04] PRI Span:
> 4 -- Processing IE 112 (cs0, Called Party Number)
> [Jan 14 12:56:04] VERBOSE[13262] chan_dahdi.c: [Jan 14 12:56:04] PRI Span:
> 4 -- Delayed processing IE 28 (cs0, Facility)
> [Jan 14 12:56:04] VERBOSE[13262] chan_dahdi.c: [Jan 14 12:56:04] PRI Span:
> 4 ASN.1 dump
> [Jan 14 12:56:04] VERBOSE[13262] chan_dahdi.c: [Jan 14 12:56:04] PRI Span:
> 4   Context Specific [11 0x0B] <8B> Len:1 <01>
> [Jan 14 12:56:04] VERBOSE[13262] chan_dahdi.c: [Jan 14 12:56:04] PRI Span:
> 4     <00> - "~"
> [Jan 14 12:56:04] VERBOSE[13262] chan_dahdi.c: [Jan 14 12:56:04] PRI Span:
> 4   Context Specific/C [1 0x01] <A1> Len:23 <17>
> [Jan 14 12:56:04] VERBOSE[13262] chan_dahdi.c: [Jan 14 12:56:04] PRI Span:
> 4     Integer(2 0x02) <02> Len:1 <01>
> [Jan 14 12:56:04] VERBOSE[13262] chan_dahdi.c: [Jan 14 12:56:04] PRI Span:
> 4       <1F> - "~"
> [Jan 14 12:56:04] VERBOSE[13262] chan_dahdi.c: [Jan 14 12:56:04] PRI Span:
> 4     Integer(2 0x02) <02> Len:1 <01>
> [Jan 14 12:56:04] VERBOSE[13262] chan_dahdi.c: [Jan 14 12:56:04] PRI Span:
> 4       <00> - "~"
> [Jan 14 12:56:04] VERBOSE[13262] chan_dahdi.c: [Jan 14 12:56:04] PRI Span:
> 4     Context Specific [0 0x00] <80> Len:15 <0F>
> [Jan 14 12:56:04] VERBOSE[13262] chan_dahdi.c: [Jan 14 12:56:04] PRI Span:
> 4       <43 65 6C 6C 20 50 68 6F-6E 65 20 20 20 57 49> - "Cell Phone   WI"
> [Jan 14 12:56:04] VERBOSE[13262] chan_dahdi.c: [Jan 14 12:56:04] PRI Span:
> 4 ASN.1 end
> [Jan 14 12:56:04] VERBOSE[13262] chan_dahdi.c: [Jan 14 12:56:04] PRI Span:
> 4   interpretation Context Specific [11 0x0B] = 0 0x0000
> [Jan 14 12:56:04] VERBOSE[13262] chan_dahdi.c: [Jan 14 12:56:04] PRI Span:
> 4 INVOKE Component Context Specific/C [1 0x01]
> [Jan 14 12:56:04] VERBOSE[13262] chan_dahdi.c: [Jan 14 12:56:04] PRI Span:
> 4   invokeId Integer(2 0x02) = 31 0x001F
> [Jan 14 12:56:04] VERBOSE[13262] chan_dahdi.c: [Jan 14 12:56:04] PRI Span:
> 4   operationValue Integer(2 0x02) = 0 0x0000
> [Jan 14 12:56:04] VERBOSE[13262] chan_dahdi.c: [Jan 14 12:56:04] PRI Span:
> 4   operationValue = ROSE_QSIG_CallingName
> [Jan 14 12:56:04] VERBOSE[13262] chan_dahdi.c: [Jan 14 12:56:04] PRI Span:
> 4   callingName Name
> [Jan 14 12:56:04] VERBOSE[13262] chan_dahdi.c: [Jan 14 12:56:04] PRI Span:
> 4   namePresentationAllowedSimple Context Specific [0 0x00] =
> [Jan 14 12:56:04] VERBOSE[13262] chan_dahdi.c: [Jan 14 12:56:04] PRI Span:
> 4     <43 65 6C 6C 20 50 68 6F-6E 65 20 20 20 57 49> - "Cell Phone   WI"
> [Jan 14 12:56:04] VERBOSE[13262] chan_dahdi.c: [Jan 14 12:56:04] PRI Span:
> 4 q931.c:8281 post_handle_q931_message: Call 6918 enters state 6 (Call
> Present).  Hold state: Idle
> [Jan 14 12:56:04] VERBOSE[13262] sig_pri.c: [Jan 14 12:56:04] Span 4:
> Processing event PRI_EVENT_RING
> [Jan 14 12:56:04] VERBOSE[13262] chan_dahdi.c: [Jan 14 12:56:04] PRI Span:
> 4 q931.c:5477 q931_call_proceeding: Call 6918 enters state 9 (Incoming Call
> Proceeding).  Hold state: Idle
> [Jan 14 12:56:04] VERBOSE[13262] chan_dahdi.c: [Jan 14 12:56:04] PRI Span:
> 4
> [Jan 14 12:56:04] VERBOSE[13262] chan_dahdi.c: [Jan 14 12:56:04] PRI Span:
> 4 > DL-DATA request
> [Jan 14 12:56:04] VERBOSE[13262] chan_dahdi.c: [Jan 14 12:56:04] PRI Span:
> 4 > Protocol Discriminator: Q.931 (8)  len=10
> [Jan 14 12:56:04] VERBOSE[13262] chan_dahdi.c: [Jan 14 12:56:04] PRI Span:
> 4 > TEI=0 Call Ref: len= 2 (reference 6918/0x1B06) (Sent to originator)
> [Jan 14 12:56:04] VERBOSE[13262] chan_dahdi.c: [Jan 14 12:56:04] PRI Span:
> 4 > Message Type: CALL PROCEEDING (2)
> [Jan 14 12:56:04] VERBOSE[13262] chan_dahdi.c: [Jan 14 12:56:04] PRI Span:
> 4 TEI=0 Transmitting N(S)=104, window is open V(A)=104 K=7
> [Jan 14 12:56:04] VERBOSE[13262] chan_dahdi.c: [Jan 14 12:56:04] PRI Span:
> 4
> [Jan 14 12:56:04] VERBOSE[13262] chan_dahdi.c: [Jan 14 12:56:04] PRI Span:
> 4 > Protocol Discriminator: Q.931 (8)  len=10
> [Jan 14 12:56:04] VERBOSE[13262] chan_dahdi.c: [Jan 14 12:56:04] PRI Span:
> 4 > TEI=0 Call Ref: len= 2 (reference 6918/0x1B06) (Sent to originator)
> [Jan 14 12:56:04] VERBOSE[13262] chan_dahdi.c: [Jan 14 12:56:04] PRI Span:
> 4 > Message Type: CALL PROCEEDING (2)
> [Jan 14 12:56:04] VERBOSE[13262] chan_dahdi.c: [Jan 14 12:56:04] PRI Span:
> 4 > [18 03 a9 83 82]
> [Jan 14 12:56:04] VERBOSE[13262] chan_dahdi.c: [Jan 14 12:56:04] PRI Span:
> 4 > Channel ID (len= 5) [ Ext: 1  IntID: Implicit  Other(PRI)  Spare: 0
>  Exclusive  Dchan: 0
> [Jan 14 12:56:04] VERBOSE[13262] chan_dahdi.c: [Jan 14 12:56:04] PRI Span:
> 4 >                       ChanSel: As indicated in following octets
> [Jan 14 12:56:04] VERBOSE[13262] chan_dahdi.c: [Jan 14 12:56:04] PRI Span:
> 4 >                       Ext: 1  Coding: 0  Number Specified  Channel
> Type: 3
> [Jan 14 12:56:04] VERBOSE[13262] chan_dahdi.c: [Jan 14 12:56:04] PRI Span:
> 4 >                       Ext: 1  Channel: 2 Type: CPE]
> [Jan 14 12:56:04] VERBOSE[13262] sig_pri.c: [Jan 14 12:56:04]     --
> Accepting call from 'NPANXXXXXX' to '3446711' on channel 0/2, span 4
> [Jan 14 12:56:04] VERBOSE[12568] pbx.c: [Jan 14 12:56:04]     -- Executing
> [3446711 at from-pstn:1] NoOp("DAHDI/i4/NPANXXXXXX-bb7", "Seven digits:
> 3446711") in new stack
> [Jan 14 12:56:04] VERBOSE[12568] pbx.c: [Jan 14 12:56:04]     -- Executing
> [3446711 at from-pstn:2] GotoIf("DAHDI/i4/NPANXXXXXX-bb7",
> "0?local-overrides,4143446711,1") in new stack
> [Jan 14 12:56:04] VERBOSE[12568] pbx.c: [Jan 14 12:56:04]     -- Executing
> [3446711 at from-pstn:3] Goto("DAHDI/i4/NPANXXXXXX-bb7", "4143446711,1") in
> new stack
> [Jan 14 12:56:04] VERBOSE[12568] pbx.c: [Jan 14 12:56:04]     -- Goto
> (from-pstn,4143446711,1)
> [Jan 14 12:56:04] VERBOSE[12568] pbx.c: [Jan 14 12:56:04]     -- Executing
> [4143446711 at from-pstn:1] NoOp("DAHDI/i4/NPANXXXXXX-bb7", "IVR call") in
> new stack
> [Jan 14 12:56:04] VERBOSE[12568] pbx.c: [Jan 14 12:56:04]     -- Executing
> [4143446711 at from-pstn:2] Set("DAHDI/i4/NPANXXXXXX-bb7",
> "GROUP()=INBOUND") in new stack
> [Jan 14 12:56:04] VERBOSE[12568] pbx.c: [Jan 14 12:56:04]     -- Executing
> [4143446711 at from-pstn:3] Answer("DAHDI/i4/NPANXXXXXX-bb7", "") in new
> stack
> [Jan 14 12:56:04] VERBOSE[12568] chan_dahdi.c: [Jan 14 12:56:04] PRI Span:
> 4 q931.c:5660 q931_connect: Call 6918 enters state 8 (Connect Request).
>  Hold state: Idle
> [Jan 14 12:56:04] VERBOSE[12568] chan_dahdi.c: [Jan 14 12:56:04] PRI Span:
> 4
> [Jan 14 12:56:04] VERBOSE[12568] chan_dahdi.c: [Jan 14 12:56:04] PRI Span:
> 4 > DL-DATA request
> [Jan 14 12:56:04] VERBOSE[12568] chan_dahdi.c: [Jan 14 12:56:04] PRI Span:
> 4 > Protocol Discriminator: Q.931 (8)  len=14
> [Jan 14 12:56:04] VERBOSE[12568] chan_dahdi.c: [Jan 14 12:56:04] PRI Span:
> 4 > TEI=0 Call Ref: len= 2 (reference 6918/0x1B06) (Sent to originator)
> [Jan 14 12:56:04] VERBOSE[12568] chan_dahdi.c: [Jan 14 12:56:04] PRI Span:
> 4 > Message Type: CONNECT (7)
> [Jan 14 12:56:04] VERBOSE[12568] chan_dahdi.c: [Jan 14 12:56:04] PRI Span:
> 4 TEI=0 Transmitting N(S)=105, window is open V(A)=105 K=7
> [Jan 14 12:56:04] VERBOSE[12568] chan_dahdi.c: [Jan 14 12:56:04] PRI Span:
> 4
> [Jan 14 12:56:04] VERBOSE[12568] chan_dahdi.c: [Jan 14 12:56:04] PRI Span:
> 4 > Protocol Discriminator: Q.931 (8)  len=14
> [Jan 14 12:56:04] VERBOSE[12568] chan_dahdi.c: [Jan 14 12:56:04] PRI Span:
> 4 > TEI=0 Call Ref: len= 2 (reference 6918/0x1B06) (Sent to originator)
> [Jan 14 12:56:04] VERBOSE[12568] chan_dahdi.c: [Jan 14 12:56:04] PRI Span:
> 4 > Message Type: CONNECT (7)
> [Jan 14 12:56:04] VERBOSE[12568] chan_dahdi.c: [Jan 14 12:56:04] PRI Span:
> 4 > [18 03 a9 83 82]
> [Jan 14 12:56:04] VERBOSE[12568] chan_dahdi.c: [Jan 14 12:56:04] PRI Span:
> 4 > Channel ID (len= 5) [ Ext: 1  IntID: Implicit  Other(PRI)  Spare: 0
>  Exclusive  Dchan: 0
> [Jan 14 12:56:04] VERBOSE[12568] chan_dahdi.c: [Jan 14 12:56:04] PRI Span:
> 4 >                       ChanSel: As indicated in following octets
> [Jan 14 12:56:04] VERBOSE[12568] chan_dahdi.c: [Jan 14 12:56:04] PRI Span:
> 4 >                       Ext: 1  Coding: 0  Number Specified  Channel
> Type: 3
> [Jan 14 12:56:04] VERBOSE[12568] chan_dahdi.c: [Jan 14 12:56:04] PRI Span:
> 4 >                       Ext: 1  Channel: 2 Type: CPE]
> [Jan 14 12:56:04] VERBOSE[12568] chan_dahdi.c: [Jan 14 12:56:04] PRI Span:
> 4 > [1e 02 81 82]
> [Jan 14 12:56:04] VERBOSE[12568] chan_dahdi.c: [Jan 14 12:56:04] PRI Span:
> 4 > Progress Indicator (len= 4) [ Ext: 1  Coding: CCITT (ITU) standard (0)
>  0: 0  Location: Private network serving the local user (1)
> [Jan 14 12:56:04] VERBOSE[12568] chan_dahdi.c: [Jan 14 12:56:04] PRI Span:
> 4 >                               Ext: 1  Progress Description: Called
> equipment is non-ISDN. (2) ]
> [Jan 14 12:56:04] VERBOSE[12568] pbx.c: [Jan 14 12:56:04]     -- Executing
> [4143446711 at from-pstn:4] Wait("DAHDI/i4/NPANXXXXXX-bb7", "") in new stack
> [Jan 14 12:56:04] VERBOSE[13262] chan_dahdi.c: [Jan 14 12:56:04] PRI Span:
> 4
> [Jan 14 12:56:04] VERBOSE[13262] chan_dahdi.c: [Jan 14 12:56:04] PRI Span:
> 4 < Protocol Discriminator: Q.931 (8)  len=9
> [Jan 14 12:56:04] VERBOSE[13262] chan_dahdi.c: [Jan 14 12:56:04] PRI Span:
> 4 < TEI=0 Call Ref: len= 2 (reference 6918/0x1B06) (Sent from originator)
> [Jan 14 12:56:04] VERBOSE[13262] chan_dahdi.c: [Jan 14 12:56:04] PRI Span:
> 4 < Message Type: RELEASE COMPLETE (90)
> [Jan 14 12:56:04] VERBOSE[13262] chan_dahdi.c: [Jan 14 12:56:04] PRI Span:
> 4 < [08 02 80 af]
> [Jan 14 12:56:04] VERBOSE[13262] chan_dahdi.c: [Jan 14 12:56:04] PRI Span:
> 4 < Cause (len= 4) [ Ext: 1  Coding: CCITT (ITU) standard (0)  Spare: 0
>  Location: User (0)
> [Jan 14 12:56:04] VERBOSE[13262] chan_dahdi.c: [Jan 14 12:56:04] PRI Span:
> 4 <                  Ext: 1  Cause: Resource unavailable, unspecified (47),
> class = Network Congestion (resource unavailable) (2) ]
> [Jan 14 12:56:04] VERBOSE[13262] chan_dahdi.c: [Jan 14 12:56:04] PRI Span:
> 4 Received message for call 0xb750d598 on link 0x9b33f2c TEI/SAPI 0/0
> [Jan 14 12:56:04] VERBOSE[13262] chan_dahdi.c: [Jan 14 12:56:04] PRI Span:
> 4 -- Processing IE 8 (cs0, Cause)
> [Jan 14 12:56:04] VERBOSE[13262] chan_dahdi.c: [Jan 14 12:56:04] PRI Span:
> 4 q931.c:8567 post_handle_q931_message: Call 6918 enters state 0 (Null).
>  Hold state: Idle
> [Jan 14 12:56:04] VERBOSE[13262] sig_pri.c: [Jan 14 12:56:04] Span 4:
> Processing event PRI_EVENT_HANGUP
> [Jan 14 12:56:04] VERBOSE[13262] sig_pri.c: [Jan 14 12:56:04]     -- Span
> 4: Channel 0/2 got hangup, cause 47
>

Richard
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