[asterisk-users] Bridging two PSTN calls

[Don Pobanz]

> Doug Zingel wrote on Tuesday, June 26, 2007 4:39 AM
>
> I'm wondering if its possible to receive a call from
> an external number (PSTN) say A. Then make a call to
> another external number (PSTN) say B - and then bridge
> the two calls so that A is talking to B? 

Yes, look at blind transfer or attended transfer. 

> What hardware will I need to be able to do this.

The same hardware as to set up a system to take calls. The hardware will
depend on what interface you will be using to the outside world. IP
(SIP)? POTS? DID/DOD trunks over T1? 

> Secondly, if I had x number of simultaneous calls (A
> talking to B) - how many PSTN lines would I need? I
> think 2x.

That is correct. 

Don Pobanz