[asterisk-users] strange ring

[Pryakhin Dimitry]

Hello

Im having strange asterisk ring.

I'm dialing PSTN network, then I get my call answered and I hear a 
person talking
but the same time remote person can't hear me. They get a ring tone.

What can be the problem?
Where do I need to look for it?

have no clue.

Running Asterisk 1.2.14 svn rev 48468
Voip gateway is Cisco5300 with IOS 12.3(9)

Scheme:

192.168.1.201  <--------------------------------> 192.168.1.227 
<---------------------> 192.168.1.226 <--------e1--> PSTN Network
Linksys PAP2T                                    asterisk 
server                           cisco as5300
Dlink DVG

No nat, it all goes thru local network
Codec g711

Thank in advance,
Dimitry