asterisk users - Sep 2003 - Has the "allow=all" function changed in sip.conf?

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> -----Original Message-----
> From: asterisk-users-admin@lists.digium.com 
> [mailto:asterisk-users-admin@lists.digium.com] On Behalf Of 
> Rich Adamson
> Sent: Tuesday, September 09, 2003 1:26 PM
> To: Asterisk-users-list
> Subject: [Asterisk-Users] Has the "allow=all" function 
> changed in sip.conf?
> What is the general consciences for the "allow=all" 
> statement?  Should it be used, should it be specific towards 
> those codecs supported, or removed?
And... is this syntax allowed:

disallow=all
allow=gsm
allow=ulaw
allow=alaw


- --
Leif Madsen - Telecommunications Technology
Sheridan College - Trafalgar Campus
@: leif.madsen@sheridanc.on.ca
ICQ: 3445119        FWD: 18924
 

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At 11:26 AM 9/9/2003 -0600, you wrote:
>What is the general consciences for the "allow=all" statement? 
Should it be
>used, should it be specific towards those codecs supported, or removed?
My understanding is that you MUST have at least one allow and one deny, or 
none at all. Just having one or the other causes "problems."

--Ernest

I had posted earlier asking about a Snom200 communicating with a C7960
and lots of noise in one direction. Turned out the problem was created
by me removing the allow=all statement in sip.conf. Someone had suggested
that statement is no longer needed, and using allow=ulaw, etc, had an issue
where one or more deny's had to be used as well.

By adding allow=ulaw in the sip.conf file, the Snom now correctly interacts
with the C7960. Both phones have their defaults set to the same, however the
v2.1l Snom code apparently has a problem negotiating that correctly.

What is the general consciences for the "allow=all" statement?  Should
it be
used, should it be specific towards those codecs supported, or removed?