12-29-2009 10:09 AM - edited 03-21-2019 01:58 AM
I have the following scenario to config & install:
UC540 w/3 SPA504 phones directly connected, 1 SPA525 phone connected via ssl vpn
Initially: AT&T will supply 4 fxo lines
In a month: service will change to AT&T FlexReach SIP trunks
Customer currently has a key-system setup; they want to continue to be able to see incoming calls on all phones
What is the best way to set this up? Do I understand correctly that key-system on the UC540 will not work with SIP trunks?
12-30-2009 03:01 AM
From your post it sounds like you want all inbound calls to ring all available extensions. If this is correct you can achieve this by setting up your inbound calls to ring a blast group that has all extensions as members.
12-30-2009 06:15 AM
CCA 2.2.1 HELP under Voice System Settings:
Voice System Type
Choose a voice system type, either PBX or Keysystem.
When you choose Keysystem, the system is placed in a hybrid mode, where SIP trunks are treated as PBX lines, and local trunks (FXO, BRI, PRI) are treated as key system lines. In this mode:
I also agree with the Blast Group comment. In PBX mode, you can set up a bast group to alert all phones when an ingress FXO or SIP trunk call comes in.
The thing about KEY SYSTEM mode, is you cant toggle to it. You would have to factory reset to toggle between PBX and it (and visa versa).12-30-2009 08:13 AM
Thanks. It sounds like pbx with blast group is the way to go. I was thinking that in pbx mode it had to go through the autoattendant, but I guess that's not required.
12-30-2009 11:16 AM
AA is optional. SIP Trunk DIDs or FXOs can be directed to any number you want.
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