No, it makes no difference, on the other end is asterisk 1.4.39

and 1.8.8 is still giving me:

 Executing [4@internal:1] Dial("SIP/11-00000003", 
"IAX2/home_server:[email protected]/4,30,rw") in new stack
    -- Called IAX2/home_server:[email protected]/4
[Dec 27 20:00:16] WARNING[16398]: chan_iax2.c:10672 socket_process: Call 
rejected by 192.168.141.1: Unable to negotiate codec
    -- Hungup 'IAX2/192.168.141.1:4569-5678'
  == Everyone is busy/congested at this time (1:0/0/1)
    -- Executing [4@internal:2] Hangup("SIP/11-00000003", "") in new stack
  == Spawn extension (internal, 4, 2) exited non-zero on 'SIP/11-00000003'

--
Joseph


On 12/27/11 15:56, Danny Nicholas wrote:
Change requirecalltoken from auto to no.  1.4 has no knowledge of this
parameter so turning it on in 1.8 creates an incompatibility (IMO).

-----Original Message-----
From: [email protected]
[mailto:[email protected]] On Behalf Of Joseph
Sent: Sunday, December 25, 2011 4:42 AM
To: [email protected]
Subject: [asterisk-users] Is Asterisk 1.4 compatible with 1.8.7 ?

After upgrading one of my server to asterisk 1.8.7.2  (the older is running
1.4.39)

When I try to dialin on asterisk-1.4.39 I get an error:
NOTICE[2414]: chan_iax2.c:9541 socket_process: Rejected connect attempt from
192.168.141.8, requested/capability 0x2/0x703 incompatible with our
capability 0xc.
NOTICE[2417]: chan_iax2.c:9541 socket_process: Rejected connect attempt from
192.168.141.8, requested/capability 0x2/0x703 incompatible with our
capability 0xc.

On asterisk-1.8.7 I get:
 WARNING[4277]: chan_iax2.c:10666 socket_process: Call rejected by
192.168.141.1: Unable to negotiate codec


I'm using ulaw / alaw code; why don't they communicate?

iax.conf (1.4.39)
[home_server]
disallow=all
allow=ulaw
allow=alaw

iax.conf (1.8.7)
[clinic_server]
disallow=all
allow=ulaw
allow=alaw
requirecalltoken=auto

--
Joseph

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--
Joseph

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