[asterisk-bugs] [Asterisk 0014577]: [patch] FXO channels "hookstate" incorrect on startup

[Asterisk Bug Tracker]

A NOTE has been added to this issue. 
====================================================================== 
https://issues.asterisk.org/view.php?id=14577 
====================================================================== 
Reported By:                jkroon
Assigned To:                sruffell
====================================================================== 
Project:                    Asterisk
Issue ID:                   14577
Category:                   Channels/chan_dahdi
Reproducibility:            always
Severity:                   major
Priority:                   normal
Status:                     confirmed
Asterisk Version:           SVN 
JIRA:                        
Regression:                 No 
Reviewboard Link:            
SVN Branch (only for SVN checkouts, not tarball releases): N/A 
SVN Revision (number only!):  
Request Review:              
====================================================================== 
Date Submitted:             2009-03-01 16:16 CST
Last Modified:              2010-03-29 03:45 CDT
====================================================================== 
Summary:                    [patch] FXO channels "hookstate" incorrect on
startup
Description: 
Referencing bug 13786 (http://bugs.digium.com/view.php?id=13786) which
attempts to work around an underlying problem in userspace (chan_dahdi). 
The issue seems to be (as described by tzafrir):

It seems to expose a bug(?) in zaptel/dahdi where chan->rxhooksig is set
to RX_HOOKSIG_INITIAL at the end of chanconfig() which leaves the channel's
state there "uninitialized" and even if the channel driver knows better it
cannot override this decision. But I'm not sure what's the intended
behaviour, so I avoid a seperate bug report on that for now.

This is manifested in that I cannot make outbound calls on an FXO card
(Using FXSKS signalling) until I've received an incoming call resetting the
hookstate to offhook (A single ring is good enough), or alternatively,
disconnecting and reconnecting the telephone line.
======================================================================
Relationships       ID      Summary
----------------------------------------------------------------------
has duplicate       0015429 After the system reboot calls do not go...
====================================================================== 

---------------------------------------------------------------------- 
 (0119974) tzafrir (manager) - 2010-03-29 03:45
 https://issues.asterisk.org/view.php?id=14577#c119974 
---------------------------------------------------------------------- 
frawed: yes. That's actually closer to the original code (before the
zap->dahdi conversion). Frankly I have no issue with that one either.

Given that (according to my fix) the patch did not actually help the
target population (CAS folks), I vote for keeping this code IFDEF-ed out
until it is actually proven useful. 

Issue History 
Date Modified    Username       Field                    Change               
====================================================================== 
2010-03-29 03:45 tzafrir        Note Added: 0119974                          
======================================================================