3 Mar
2005
3 Mar
'05
3:10 a.m.
Hi,
I have tested ser with a T1 trunk GW not behind NAT, but using fixed IP. I then disable
the use of rtpproxy and nathelper. However, when I use PSTN call to a SIP UA, only
ringtones could be heard but no voice passing through it.
Does it mean that rtpproxy + nathelper must be used even in the case when UA and PSTN GW
are not behind NAT/Firewall?
Thomas