[Asterisk-Users] IAXPHONE failures in calls to Cisco Phones

[MLS Drop for SysAdmin]

I have been operating a functional asterisk system using Fedora in a 500 MHz Pentium III
Stations are Cisco 7960s and Grandstream 102s.  We needed to identify a software based phone
to handle traveling users, so we tried IAXPHONE's latest version.

Interestingly, calls from the IAX client to 7960 phones fail. going right to voicemail.  The following
lists the console messages from one such attempt.  [Note the Response 400 "Bad request.]:

-- Accepting AUTHENTICATED call from 68.106.146.79, requested format = 2, actual format = 2
    -- Executing Macro("[EMAIL PROTECTED]/9", "exten-vm|6410|6410") in new stack
    -- Executing SetMusicOnHold("[EMAIL PROTECTED]/9", "default") in new stack
    -- Executing Dial("[EMAIL PROTECTED]/9", "SIP/6410|20|tr") in new stack
    -- Called 6410
    -- Got SIP response 400 "Bad Request" back from 68.106.146.79
  == No one is available to answer at this time
    -- Executing VoiceMail2("[EMAIL PROTECTED]/9", "u6410") in new stack
    -- Playing 'vm-theperson' (language 'en')
    -- Playing 'digits/6' (language 'en')
    -- Playing 'digits/4' (language 'en')
    -- Playing 'digits/1' (language 'en')
    -- Playing 'digits/0' (language 'en')
    -- Playing 'vm-isunavail' (language 'en')
    -- Playing 'vm-intro' (language 'en')
    -- Playing 'beep' (language 'en')

If, however, we use the IAX client to call a Grandstream phone, the call works.  Here are the
coinsole message from such a call:


  -- Accepting AUTHENTICATED call from 68.106.146.79, requested format = 2, actual format = 2
    -- Executing Macro("[EMAIL PROTECTED]/3", "exten-vm|6413|6413") in new stack
    -- Executing SetMusicOnHold("[EMAIL PROTECTED]/3", "default") in new stack
    -- Executing Dial("[EMAIL PROTECTED]/3", "SIP/6413|20|tr") in new stack
    -- Called 6413
    -- SIP/6413-9405 is ringing
    -- SIP/6413-9405 answered [EMAIL PROTECTED]/3
  == Spawn extension (macro-exten-vm, s, 2) exited non-zero on '[EMAIL PROTECTED]/3' in macro 'exten-vm'
  == Spawn extension (from-iaxphone, 6413, 1) exited non-zero on '[EMAIL PROTECTED]/3'
    -- Hungup '[EMAIL PROTECTED]/3'

The strange thing is, that both extensions are defined identically in "extensions.conf" file:

; User Name
exten => 6410,1,Macro(exten-vm,6410,6410)
exten => 6411,1,Macro(exten-vm,6411,6411)
exten => 6412,1,Macro(exten-vm,6412,6412)
exten => 6413,1,Macro(exten-vm,6413,6413)
exten => 6666,1,Macro(exten-vm,6666,6666)

Has anyone else experienced this, or does anyone have idea what's wrong?

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