[Asterisk-Users] top-notch servers/OS/network, ulaw codec - sound still choppy

[Gabriel Afana]

Hi,
    My SIP calls are sounding a little choppy.  I've did my research but
everything looks right on my end...what am I missing?

Running RedHat ES 3.0 on dual AMD Opteron servers.  My system is cololocated
in downtown LA and is fed via a gigabit handoff from XO, AT&T, Level 3 and
Wiltel (I have a 100Mb didicated line).  So I dont think its the Servers,
its the network, Asterisk is working fine and all codecs look right...what
could be the cause?


**SNIP FROM SIP.CONF***
[general]
context=default                 ; Default context for incoming calls
port=5060                       ; UDP Port to bind to (SIP standard port is
5060)
;bindaddr=0.0.0.0                ; IP address to bind to (0.0.0.0 binds to
all)
srvlookup=yes                   ; Enable DNS SRV lookups on outbound calls
                                ; Note: Asterisk only uses the first host
                                ; in SRV records


allow=ulaw                      ; Allow codecs in order of preference
*************************

ga0*CLI> sip show channels
Peer             User/ANR    Call ID      Seq (Tx/Rx)   Format
64.201.99.247    9092479878  2fd496bf330  00103/00105   ulaw

ga0*CLI> show version
Asterisk 1.0.3 built by root at g0.gafana.com on a x86_64 running Linux



P.S.  in my sip.conf file, it looks like I am only allowing the ulaw
codec...could that cause a problem if I happen to need to call somebody that
doesn't support ulaw?

Gabe