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FXS - FXS and FXO - FXO. Is it possible?

Hi all

does someone knows if it's possible to connect two FXS ports or two FXO ports?

I read about connecting two FXSs at http://www.cisco.com/en/US/tech/tk652/tk701/technologies_configuration_example09186a00800afd65.shtml#contrunk_design , using no signaling. When will be this recommended?

Is is recommended under any situation?

1 Reply 1

Chester Rieman
Cisco Employee
Cisco Employee

Sure, this is used in many situations.

For FXS to FXS, like the page says you will need the signal-type ext-signal command in the config.

This is usually used when you want to connect phones to a distant PBX:

PBX----GW----(voip)-----GW----phone

Hope this helps.