[cisco-voip] IP overhead paging: likes and dislikes? SIP andsurvivability...

[Philip Walenta]

I have SIP phones currently running in this mode.  There appears to be a way
to register a SIP device to a router without it being in SRST mode (mine
runs in CME by default).  My devices are dial-capable from anything else
registered to that router.

If you'd like I can send you a config offline.

-----Original Message-----
From: cisco-voip-bounces at puck.nether.net
[mailto:cisco-voip-bounces at puck.nether.net] On Behalf Of Robert Kulagowski
Sent: Wednesday, September 02, 2009 1:28 PM
To: cisco-voip at puck.nether.net
Subject: [cisco-voip] IP overhead paging: likes and dislikes? SIP
andsurvivability...

So, what's the consensus out there?  Greenfield project, so no requirement
for old-school analog (unless that's what we want)

I've looked at Cyberdata, and there appear to be others out there.

Right now if the site goes into SRST, then the ATA's just register and
overhead paging should still work.  But I'm concerned that with a SIP
solution, I may lose that.  According to the Cisco docs that I found here
http://www.cisco.com/en/US/products/sw/voicesw/ps2169/products_configuration
_guide_chapter09186a008060c355.html

the endpoint should support dual-registration for survivability reasons. 
I've asked Cyberdata tech support if their speaker has that capability, no
response yet.

I haven't investigated if it's possible for the IP speaker to register to
the router right from the get-go because I'm not sure that the router will
allow SIP connections like that if it's not in SRST mode.

Thanks for any insight...
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