[asterisk-bugs] [Asterisk 0007904]: Transfer capability is inherited by a channel after being transfered via atxfer

[noreply at bugs.digium.com]

A NOTE has been added to this issue. 
====================================================================== 
http://bugs.digium.com/view.php?id=7904 
====================================================================== 
Reported By:                k-egg
Assigned To:                otherwiseguy
====================================================================== 
Project:                    Asterisk
Issue ID:                   7904
Category:                   Applications/app_dial
Reproducibility:            always
Severity:                   major
Priority:                   high
Status:                     assigned
Asterisk Version:           1.2.11 
SVN Branch (only for SVN checkouts, not tarball releases): N/A 
SVN Revision (number only!):  
Disclaimer on File?:        No 
Request Review:              
====================================================================== 
Date Submitted:             09-08-2006 06:37 CDT
Last Modified:              01-15-2008 08:55 CST
====================================================================== 
Summary:                    Transfer capability is inherited by a channel after
being transfered via atxfer
Description: 
PhoneA calls PhoneB (221)
by Dial("mISDN/12-1", "mISDN/1/221|15|tr")
PhoneA is not allowed to initiate transfers at that time.
PhoneB is allowed to.

PhoneB transfers PhoneA to PhoneC(208) (attended trans) 
by Dial("Local/208 at isdn-nt-1-bcec,2", "mISDN/8/208|15|")

now PhoneA now is allowed to initiate transfers: 

for example:
exten => 1,1,Playback(tt-monkeys)
cli output: 
- Started music on hold, class 'default', on Local/208 at isdn-nt-1-bcec,1
    -- Playing 'pbx-transfer' (language 'de')
    -- Executing Playback("Local/1 at macro-dial_intern-e687,2",
"tt-monkeys") in new stack
    -- Playing 'tt-monkeys' (language 'en')



Is this a bug? a feature? or designed to behave like this?
wondering...

kegg
======================================================================
Relationships       ID      Summary
----------------------------------------------------------------------
has duplicate       0010198 Important vulnerability after native tr...
related to          0010897 Parked call inherits transfer capability
====================================================================== 

---------------------------------------------------------------------- 
 Corydon76 - 01-15-08 08:55  
---------------------------------------------------------------------- 
I think it's clear that if we can't fix it to work correctly, then we
should remove inheritance of the transfer capability.  In other words, make
it work safely, even if it decreases functionality, to avoid an incorrect
capability. 

Issue History 
Date Modified   Username       Field                    Change               
====================================================================== 
01-15-08 08:55  Corydon76      Note Added: 0076974                          
======================================================================