Softphone Over DSL Natted (No VPN)

[Avayell]

I have the following case.

S8400/G650. Public addresses used. When i use the softphone from my home adsl it works fine. When the client is trying from his home with his adsl connection he gets a message saying something about NAT. I told him to forward ports 1719 and 1720 and also a udp range for the rtp that i also defined in a new network region. Nevertheless we cannot get it to work. I also did a trace on the station as you can see bellow.

list trace station 080 Page 1

LIST TRACE

time data

10:34:33 rcv GRQ endpt S8400IP:20663 switch SoftPhoneIP:1719 ext 080
10:34:33 snd GCF endpt S8400IP:20663 switch SoftPhoneIP:1719 ext 080
10:34:35 rcv GRQ endpt CLANIP:20663 switch SoftPhoneIP:1719 ext 080
10:34:35 snd GCF endpt CLANIP:20663 switch SoftPhoneIP:1719 ext 080


In the call server field on the softphone he has entered the processor instead of the CLAN but i guess this is not the problem because i can see in the trace that the CLAN is sending a confirmation. After the above he gets the message regarding the NAT.

Any help much appreciated.5

 

[Avayell]

??

 

[optionsleft]

The ADSL modem at home may not support NAT. Check to see the specs of the modem as I experienced this before.

mwooks