[Asterisk-Users] Ast<->Ast: IAX2 error w/no audio

[Asterisk Forum]

I have two servers connected together.
Server 1: RHEL 3 running Asterisk SVN-branch-1.2-r8735
Server 2: LinksysWRT54GS/Whiterussian RC4/Asterisk 1.0.7

Trunk call between Server 1 -> Server 2 phone rings, recipient picks up, 
no audio.
Message in logs on Server 1:
chan_iax2.c: Peer did not understand our iax command '24'

There is no message in the logs on the WRT54GS as most debug stuff is 
not running due to the limited hardware.

Any ideas??? If it could not negotiate codecs I would expect it to say 
so and drop the call.

Server1: iax.conf
[Server2]
type=user
host=server2.ca
secret=server2secret
context=mycontext
trunk=yes

extensions.conf
exten => 1234,1,Dial(IAX2/Server1:server1secret at server2.ca/1234 at default)

Server2: iax.conf
[Server1]
type=user
host=server1.ca
secret=server1secret
context=default
trunk=yes

extensions.conf
exten => 4321,1,Dial(IAX2/Server2:server2secret at server1.ca/4321 at mycontext

dbc.