Gateway IP to PSTN

[Osman_gadji_2]

Hi guys!

I have a Cisco 2811 router (C2800NM-ADVIPSERVICESK9-M, Version 12.4 (18) and the PBX.

In our office comes four analog line from a very old PSTN. line is pulse.

Tell me, what Network Module/Interface Card should be used to connect analog lines, PSTN?

Thanks

[Faheem Ansari · Accepted solution]

if you need to connect PSTN with Cisco Router... you require 4 port FXO module, it could be VIC3-4FXO or VIC2-4FXO with IP Voice Services IOS.

don't forget to rate the helpful answer

Regards.

[Osman_gadji_2]

Thanks.

With this module, can i configure some interfaces as tonal, and others as a pulse?

I am live in russian, have any exceptions when configuring module?

Can you recommend resource where i can find documentation?

Thanks.

[paolo bevilacqua]

If you want to connected the PBX you will also need FXS interfaces.

You will also need PVDM2 modules.

In any case, recommend you engage a reputable consultant or certified cisco partner, otherwise you will run into many difficulties, and the results will be poor.

[Faheem Ansari]

you can find documentation from Cisco.com under Support>Configure Tab, but i would to recommand some pure Cisco Techie fo this JOB.

Regards,

Faheem Ansari

[Osman_gadji_2]

For connecting PBX, i can use ip. My PBX is a IP-software based.

Why i need a PVDM2 modules?

[paolo bevilacqua]

Because they are DSP.

No DSP, No VoIP.

[Osman_gadji_2]

ok, thanks, understand!

Are you sure, that Cisco gateway is no support for pulse dialing?

[paolo bevilacqua · Accepted solution]

I stand corrected, it's supported.

voice-port x/x

dial-type pulse

[Osman_gadji_2]

Okay.

Guys, thanks very much

[paolo bevilacqua]

Thank you for the nice rating and good luck!