[asterisk-bugs] [Asterisk 0011974]: external lines connected with message !! Got Busy in Connected State !?!

[noreply at bugs.digium.com]

A NOTE has been added to this issue. 
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http://bugs.digium.com/view.php?id=11974 
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Reported By:                fvdb
Assigned To:                crich
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Project:                    Asterisk
Issue ID:                   11974
Category:                   Channels/chan_misdn
Reproducibility:            random
Severity:                   major
Priority:                   normal
Status:                     assigned
Asterisk Version:           1.4.17 
SVN Branch (only for SVN checkouts, not tarball releases): N/A 
SVN Revision (number only!):  
Disclaimer on File?:        N/A 
Request Review:              
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Date Submitted:             02-11-2008 16:48 CST
Last Modified:              02-13-2008 05:04 CST
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Summary:                    external lines connected with message !! Got Busy in
Connected State !?!
Description: 
I am using asterisk 1.4.17 together with misdn,  once in a while:

-when a call was put on hold
-the operator tries to call a internal party for transfering the call
-the internal party doesn't answer the phone
-the operator wants to get the external line back again by putting the
call "off hold"

And then the external line is disconnected.
an exact log of events is recorded and is given in the additional
information

This happens a few times a day, i am not sure if this is the right place
to post this error, but it troubles me for a lang while. I first thought
the telephone was the cause of this problem (linksys 962). I've chosen the
Digium Wildcard B410P ISDN BRI as my ISDN interface, the reason was that i
thought it would seamless integrate into asterisk (digium digium) therefor
i hope that this answer is also answered in this asterisk thread.

in the asterisk user section some-one else also has this issue
 
====================================================================== 

---------------------------------------------------------------------- 
 fvdb - 02-13-08 05:04  
---------------------------------------------------------------------- 
another simulair problem occurred
Extension Changed 203 new state Idle for Notify User 201
  == Spawn extension (default, 702, 1) exited non-zero on
'SIP/201-b6308bc0'
 Extension Changed 237 new state InUse for Notify User 201
    -- Executing [0354354 at default:1] misdn_check_l2l1("SIP/237-b6304668",
"g:extern|2") in new stack
    -- Executing [0354354 at default:2] Dial("SIP/237-b6304668",
"mISDN/1/354354|30|WKT") in new stack
    -- Called 1/354354
    -- mISDN/1-u89 is proceeding passing it to SIP/237-b6304668
    -- mISDN/1-u90 is ringing
    -- mISDN/1-u90 answered SIP/237-b6304668
 Extension Changed 203 new state InUse for Notify User 201
    -- Executing [0352630 at default:1] misdn_check_l2l1("SIP/203-b6305bf8",
"g:extern|2") in new stack
    -- Executing [0352630 at default:2] Dial("SIP/203-b6305bf8",
"mISDN/1/352630|30|WKT") in new stack
    -- Called 1/352630
    -- mISDN/2-u93 is proceeding passing it to SIP/203-b6305bf8
    -- mISDN/2-u94 is ringing
    -- mISDN/2-u94 answered SIP/203-b6305bf8
    -- Executing [0475528520 at incomming:1] Answer("mISDN/4-u95", "") in new
stack
    -- Executing [0475528520 at incomming:2] misdn_check_l2l1("mISDN/4-u95",
"g:extern1|2") in new stack
    -- Executing [0475528520 at incomming:3] Dial("mISDN/4-u95",
"mISDN/4/0475531157") in new stack
    -- Called 4/0475531157
    -- mISDN/7-u98 is proceeding passing it to mISDN/4-u95
    -- mISDN/7-u99 is ringing
    -- mISDN/7-u99 answered mISDN/4-u95
    -- Executing [0475528520 at incomming:1] Answer("mISDN/6-u100", "") in
new stack
    -- Executing [0475528520 at incomming:2] misdn_check_l2l1("mISDN/6-u100",
"g:extern1|2") in new stack
    -- Executing [0475528520 at incomming:3] Dial("mISDN/6-u100",
"mISDN/4/0475531157") in new stack
    -- Called 4/0475531157
    -- mISDN/8-u103 is proceeding passing it to mISDN/6-u100
    -- mISDN/8-u103 is busy
  == Everyone is busy/congested at this time (1:1/0/0)
  == Auto fallthrough, channel 'mISDN/6-u100' status is 'BUSY'
[2008-02-13 12:03:43] WARNING[17978]: chan_misdn.c:5650 chan_misdn_log: 
--> !! Got Busy in Connected State !?! ast:mISDN/6-u100
P[ 4]  --> Didn't find BC so temporarly creating dummy BC (l3id:ffff0001)
on this port.
[2008-02-13 12:04:03] WARNING[13710]: chan_misdn.c:5650 chan_misdn_log:
Got EVENT_FACILITY but we don't have a ch!
  == Spawn extension (default, 0354354, 2) exited non-zero on
'SIP/237-b6304668'
 Extension Changed 237 new state Idle for Notify User 201 

Issue History 
Date Modified   Username       Field                    Change               
====================================================================== 
02-13-08 05:04  fvdb           Note Added: 0082142                          
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