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

[Lelio Fulgenzi]

Not sure if this helps or not, but I have found that a router is always in SRST mode, well, ready to accept registrations anyways. As long as dial-peers are programmed to gateways, etc, then things will work. So, this means, if a phone can't talk to the CUCM, but the SRST router can, you will have phones registering, but not able to dial off-net because the router's gateways are still registered to the CUCM, not the router. 



--- 
Lelio Fulgenzi, B.A. 
Senior Analyst (CCS) * University of Guelph * Guelph, Ontario N1G 2W1 
(519) 824-4120 x56354 (519) 767-1060 FAX (JNHN) 
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
"Bad grammar makes me [sic]" - Tshirt 


----- Original Message ----- 
From: "Philip Walenta" <pwalenta at wi.rr.com> 
To: "Robert Kulagowski" <rkulagow at gmail.com>, cisco-voip at puck.nether.net 
Sent: Wednesday, September 2, 2009 4:58:25 PM GMT -05:00 US/Canada Eastern 
Subject: Re: [cisco-voip] IP overhead paging: likes and dislikes? SIP andsurvivability... 

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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