[Asterisk-Users] Linksys pap2 behind Linksys RT31

[Trevor Peirce]

Sebastian Milioto wrote:

>Hi all,
>
>I have a public ip in Linksys RT31 (2 FXS port + 3 swtich port + 1
>uplink port). I want to add behind it, a Linksys pap2 (uplink port + 2
>FXS port) with private ip.
>I understand that I have to configure Port forwarding or port
>triggering (really I'm not sure which one).
>Is someone already configured this toplogy? Could you help me with that, please?
>  
>
I have had very weird experiences with running any kind of SIP device 
behind those router/ata combo devices.  I've tried both a SPA-200 and a 
Polycom 501 with very odd results (ie. calls that should go to 
router/ata's FXS actually go to Polycom *as well*, and when you answer 
one the other keeps ringing.  If you answer the other you end up in a 
really crappy quality 3 way call.  Hanging up either device will 
terminte the call altogether)

Just a heads up...

Trev