I love Asterisk and it is just about exactly what I want. The only problem is it can’t seem to do the one thing I and most small businesses want. That is shared call appearance. Most small businesses are familiar with KSU’s and Hybrid PBX’s which have multiline phones where every PSTN line is associated with a specific button on each phone.
This simplifies things because there is no need to do transfers or memorize any key sequence or who is on what extension etc… Just place the call on hold on one phone and pick it up at another. It also gives an instant visual representation of which lines and extensions are busy.
I see that some IP phones such as Polycom and Aastra support this feature but it also needs to be supported on the server end. I have not been able to find any info on Asterisk being able to support this feature. Is there any current or planned way of doing this. A modification or hack. Anything?
I see there is an internet draft describing this support in SIP. They are calling it "bridged line appearance:
ietf.org/internet-drafts/dra … bla-02.txt