[Asterisk-Users] Can't hear the caller

[Dana Olson]

If your IP address changes daily, you need to continually update this, correct?

I too have this issue with SIP, but my ISP is a little unstable, so I
need to use DynDNS or No-IP to kinda work around/with it. I assume you
can't specify a hostname there?

--
Dana


On Mon, 21 Mar 2005 13:45:44 -0700, info at cybernergies.com
<info at cybernergies.com> wrote:
> i had a similar problem a while ago. I solved it by defining 
> externip=xxx.xxx.xxx.xxx  in sip.conf. It tells the remote SIP client where
> you are. 
>  
> -chuks.
> 
> 
> -------- Original Message --------
> Subject: [Asterisk-Users] Can't hear the caller
> From: Lane <lane at joeandlane.com>
> Date: Mon, March 21, 2005 11:53 am
> To: "Asterisk Users Mailing List - Non-Commercial Discussion"
> <asterisk-users at lists.digium.com>
> 
> Hi,
> 
> I've got a strange issue, that I haven't found addressed on the wiki.
> 
> My asterisk box is behind a firewall which routes udp/tcp requests on 5060
> and 
> 8000 to asterisk.
> 
> When I make a call from a Zap or SIP extension on the inside of the firewall
> to any Zap or SIP extension on the inside of the firewall, everything works 
> find.  I have access to voipjet, and when I place a call through them 
> everything also works fine.
> 
> However, I have several SIP extensions defined for remote users.  They can 
> authenticate to asterisk and they can call me and I can call them.  However,
> whether I place the call or receive the call I cannot hear the remote user!!
> They can hear me, though. (I'm inside the firewall).
> 
> My remote users are on XLite, if that makes a difference.
> 
> Anybody got an idea why the firewall is blocking traffic for these SIP
> phones, 
> but not for voipjet?
> 
> Thanks
> 
> lane