1) I guess one person uses that phone. With that in mind, one extension (both on FS and on the phone) will do. If you need to route different DIDs you can do that on that some extension (not map DIDs to exts 1-1). You can just set Line Key 2,3,4 to Ext 1 and they will blink and phone will ring  if another call comes in, during first call. In this case call waiting needs to be enabled.
No complicated dialplan is needed, default one will do. If you disable CW, phone will send 486 response immediately if on call, so you use continue_on_fail=USER_BUSY.
2) You can use something like 

  <action application="bridge" data="${group_call(${group_name}@${domain_name}+A)}"/>

in the dialplan and 

     <group name="finance">
        <users>
          <user id="111" type="pointer"/>
          <user id="184" type="pointer"/>
          <user id="119" type="pointer"/>
        </users>
      </group>

in the directory.
This is scalable, you can easily set ring/hunt groups this way, just create and edit them in the directory.
With regards to the buttons, that's really just configuration of the phone.

Join irc channel (#freeswitch on irc.freenode.net) if you have additional questions.

On Sun, Nov 25, 2012 at 6:21 AM, Sean Devoy <sdevoy@bizfocused.com> wrote:

Hi All,

 

Thanks for your help as always.

 

I have a CISCO 504G four line phone.  I don’t think the model is particularly relevant, just that it is a multi-line phone.

 

Issue one:

If line 1 is busy, I want new calls to be directed to line 2. If 1 and 2 are in use, ring on 3 and then line 4.  I think this means call waiting will need to be disabled so that each will ring busy, enabling rollover.  Also, I don’t want lines 2, 3 and 4 to all ring if 1 is busy.

 

I think I just use continue_on_fail=true and hangup_after_bridge=true, then route to Line 1, then 2, 3 and 4.

 

Issue two:

I have 6 phones in a call group and I need the call group to ring each phone like explained in issue one. I cannot for the life of me figure out how to “layer” devices to failover independently when dialed in a group.

 

That is to say, when a call comes in it should be bridged to all 6 phones on the lowest available line button.  Whoever answers first gets to call and all other lines return to ready state.

 

Any thoughts would be greatly appreciated.

 

Sean

 


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