Get help with installing, upgrading and running a PBX such as Asterisk.
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By WelshPaul
#4830
Create a call group and add the three extensions that the phones are registered against to it. Then, add the group number to the phones speed dial. Dial the appropriate speed dial number (e.g. 2) and the phone dials the group number assigned to that speed dial, all three phones will ring.

How to set up a speed dial on the SPA504:

OK thanks, what VPN are you using ??

A good write up on SIP ALG: https://www.voicehost…

Thanks very much. Really appreciate it! :-D

Attached below is my latest OBIHAI UK configuratio…