One-way audio on incoming call

Asterisk Asterisk Support
1

I’m new to asterisk and i’m desperate for help.

I got a simple enviroment, One linksys spa3000 that act as fxo/PSTN converter and an asterisk 13 server that route 10 phone. No firewall or NAT. When i answer an incoming call i can hear the audio and speak but the One Who call can’t.

Any idea? What i should check? The system and the architecture is a clone of What i did on another enviroment Where everything work as It should.

Sorry for my bad english

Cheers to anybody will help me

2

Assuming you clone this system, might be posible you didnt update this parameter according to the new enviroment .

externaddr = 12.34.56.78 (your public IP)

   localnet=192.168.0.0/255.255.0.0 ; RFC 1918 addresses
   localnet=10.0.0.0/255.0.0.0      ; Also RFC1918
   localnet=172.16.0.0/12           ; Another RFC1918 with CIDR notation          
   localnet=169.254.0.0/255.255.0.0 ; Zero conf local network

On sip devices if there are behind nat
nat=force_rport,comedia
;

3

Thanks i Will check! Where should i put this parameters? I Only deleted the 70-persistent-net.rules to refresh the MAC