[Asterisk-Users] nat problem

[administrator tootai]

Webn1 a écrit :

>hello,
>
>i have trouble with nat + sip outgoing call.when make an outgoing call to a
>sip gateway, i have no sound.
>
>i have 2 sip gateway, one is asterisk.
>
>asterisk is on public ip and private ip
>other sip gateway is on public ip
>phone are cisco and grandstream on private ip on the same subnet as
>asterisk.
>phone are connected by sip to asterisk (i have try with or without nat=yes)
>
>incoming call from sip gateway to asterisk : no problem
>outgoing call from asterisk to sip gateway : no sound
>
>no sip error
>if i put a phone on public ip, incoming and outgoing call work fine
>
>i haven't make any port translation since phone and asterisk are on the same
>private subnet.
>phone register on the private ip of asterisk
>
>i have zaphfc connected to isdn and incoming and outgoing call work fine
>(with phone on public or private ip)
>
>any idea what's wrong or try to fix this problem ?
>  
>
codec?

>thanks for help
>  
>
-- 
Daniel