[Asterisk-Users] Shared Call and Bridged Line appearances on Polycom IP501

[George Pajari]

Anthony:

> I am trying to get either of the above features to work with *, but  
> can't seem to get it quite right. If anyone has them working, I'd  
> sure appreciate an extract from the relevant config files.
>
> Or, maybe I'm tilting at windmills, and * doesn't support them - in  
> which case, the underlying business need is to provide the one  
> incoming call on more than one extension at the same time, and have  
> all other extensions stop ringing when one of them answers the call.


Asterisk does that by specifying multiple SIP extensions in a single 
DIAL command:

exten => 102,1,Dial(SIP/netvoice-102&SIP/netvoice-103&SIP/netvoice-105,20)


> The other scenario is typical boss/secretary stuff - we need an  
> incoming call to ring on both extensions at once as above, plus the  
> ability to indicate to the secretary when the boss is on the phone.


This is known as SUBSCRIBE/NOTIFY in SIP parlance (see the comments in 
http://voip-info.org/wiki-Asterisk+standard+extensions) and uses the 
"hint" priority in extensions.conf along with specific support in the 
SIP phone. SNOM phones have it -- Grandstream has promised it in a 
future firmware U/G to the GXP-2000, and its anyone's guess if the 
Sayson/Aastra 480i will ever get it. Have no idea about the Polycom.

> Does anyone have anything like this working?


In short, yes.

g.


-- 
George Pajari, netVOICE communications    604 484 VOIP (484 8647 x102)
Open Source VoIP/Telephony Specialists  1 877 NET VOIP (638 8647 x102)
                  www.netvoice.ca  www.ip-centrex.ca
      www.digium.ca www.grandstream.ca www.sipura.ca www.snom.ca