[Asterisk-Users] Almost there--Remote connection

[Benjamin on Asterisk Mailing Lists]

On Tue, 19 Oct 2004 11:18:17 -0400, Ferguson, Michael
<ferguson at brvmlaw.com> wrote:
> 
> My Grandstream 100 is at a remote location on broadband and connects to
> my * server else where.

and:

> The * server is behind a firewall

and:

> The GS100 rings. When answered I can clearly hear everything coming from
> the phone that's calling in.
> The caller cannot hear anything coming from the GS100 IP phone.

Of course not.

Running a SIP server behind a Firewall does not exactly make things
straightforward.

Is your server is only behind a firewall or is it also behind a NAT?

If it is behind NAT you should know that that SIP/NAT traversal
workarounds are for clients behind NAT connecting to servers on public
IPs, not for clients on public IPs connecting to servers behind NAT.

rgds
benjk

-- 
Sunrise Telephone Systems, 9F Shibuya Daikyo Bldg., 1-13-5 Shibuya,
Tokyo, Japan.

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