Thread: [Announce] vpn9c -- vpnc client with launch GUI for n9...I
View Single Post
too's Avatar
too is offline too
2012-09-14 , 07:30
Posts: 122 | Thanked: 135 times | Joined on Dec 2009 @ Helsinki
#48
Originally Posted by imagomundi View Post
... The outgoing call is initiated properly from FRITZ just as if I would use a connected DECT phone being at home. I can even hear that the called phone is ringing. But when the other side answers there is absolut silence on my N9 as well as on the phone on the other end.

I know from other forums that VoIP by SIP over VPN is of high interest for many users.
There is no audio problem when i'm doing the same with my 808 where the vpn client configuration is done by NOKIA's own tool.
The vpn client should provide "transparent" network connection
and therefore my first suspect would be to check what are the
differences between N9 and 808 VoIP clients (some NAT handling
things comes first to mind).

You could try to "debug" first the network topology between
endpoints and then packet traversals between those.
run at least ifconfig, route, ping & traceroute to gain some
initial understanding.
(In my network ping & traceroute goes nowhere -- probably
the vpn server drops ICMP packets to most destinations -- or
something...)