On the Asterisk side your firewall shall allow UDP port 5060 for SIP
and some UDP ports for RTP (default 1-2 can be changed at
/etc/asterisk/rtp.conf). Your sip.conf shall have Qualify=yes and
Nat=yes.
On the telephone side, as long as your firewall allows outgoing
traffic on 5060 and on
Hi Folks,
Anyone know how to make a grandstream phone work against a * server when
it is behind a cheap linksys type firewall? I have no control over the
firewall but am allowed to go anywhere I want.
On the * end of the link there is another linksys type firewall which I do
control. What I
