Hi Jason,

 

There are a couple of boxes on the market these days that have the following ports:

 

FXO/ISDN line out to PSTN

2 - FXS - analogue phone (or fax)

WAN port for DSL

As well as wfifi.

 

Fritz WLAN FON box for example.

 

Quick design:

 

Asterisk server at HQ. Each remote employee has one of these boxes.

 

Calls in go to Asterisk, and get forwarded via VOIP to a phone registered via SIP from one of the FRITZ boxes. If there is no SIP registration, the call could be redirected back out to the PSTN. Calls from an employee could go out either Asterisk or the PSTN based on dialplan. You would need either two FXO ports on the Asterisk (or one ISDN port).

 

All the rest, voicemail, recording, time of day changes, etc. can all be done in Asterisk.

 

Good luck,

Joe

 

 

 

 

 

Joseph Rothstein, CCIE

Senior Network Engineer

 

 

 

 

Comcentrixs GmbH

Landsberger Str. 155 / House 2

D-80687 Munich

Office: +49 (0) 89 2444 3168 - 212

Softphone: +49 (0) 89 2444 3168 - 8451

Mobile: +49 (0) 172 104 3273

Fax: +49 (0) 89 2444 3168 - 999

E-mail: [EMAIL PROTECTED]

Web: http://www.comcentrixs.com

 

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