[cisco-voip] shared line as primary line

[Robert Kulagowski]

Bill Simon wrote:
> I do it with my test phones, all have the same single DN assigned, and
> it doesn't seem to be a problem at all.  Why does Cisco say not to do
> this?

Maybe because it exposes the fact that not all the lines would start 
ringing at the same time?  I'm running into this situation at a remote 
site (Beijing, with call processing cluster in the U.S.) - no 
receptionist, so the main number is on every phone.  When the main 
number gets a call various phones start ringing, but the ring cadence is 
such that they're "out of phase" with each other.

Without doing traces, I'm guessing it's because CM has to unicast to 
each phone to get them to start ringing. (And because of TCP delay it 
just makes it apparent)

CM 4.1.3sr2, phones are running 8.2.1