Setup sip callers to pstn receivers

[LoMayoKicksA]

Pardon me if I am not posting this on the right section.

I want to make this setup:

3-6 sip callers from USA can simultaneously call their respective clients in the Philippines that are using pstn lines and this should work the other way around(pstn to sip).  If the setup has the option for conference call, that is fine but not necessarily needed.   Other  features such as voice mail are not needed. Just plain and simple call and talk is the purpose.  I just need the cheapest setup that can do the intended purpose.

Note: Internet speed available is 1mb but hoping that the 1.5mb line will be available by end of May.

What is the cheapest equipment can I use to make this setup work?

Please advise.

[Andrey Cassemiro]

Hi Sir,

According to your project, the device that you should use is the SPA8800.

It has 4 FXO ports for PSTN Connection and 4 FXS ports with 4 SIP lines for VoIP.

if you need 6 lines you can use 2 SPA8800 or one SPA8800 + 2 SPA3102.

Thanks,

Regards.

Andrey Cassemiro.