[cisco-voip] H323 Gateway needed for SNR mid-call features?

Wes Sisk wsisk at cisco.com
Mon Mar 12 12:21:32 EDT 2012


Apologies Lelio, but I honestly don't know.  Maybe Nick can translate this marketing speak.

On Mar 9, 2012, at 3:39 PM, Lelio Fulgenzi wrote:

If I wanted to spec a couple of new routers for this purpose for active/active, active/standby, active/shelf (or whatever is available), what would I be looking at?

Is one of these H323 hairpin calls considered a "digital voice" call as spec'ed here:

http://www.cisco.com/en/US/prod/collateral/routers/ps10538/aag_c45_556315.pdf



---
Lelio Fulgenzi, B.A.
Senior Analyst (CCS) * University of Guelph * Guelph, Ontario N1G 2W1
(519) 824-4120 x56354 (519) 767-1060 FAX (ANNU)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Cooking with unix is easy. You just sed it and forget it. 
                              - LFJ (with apologies to Mr. Popeil)


From: "Wes Sisk" <wsisk at cisco.com>
To: "Lelio Fulgenzi" <lelio at uoguelph.ca>
Cc: "Nate VanMaren" <VanMarenNP at ldschurch.org>, "cisco-voip at puck.nether.net VOIP" <cisco-voip at puck.nether.net>
Sent: Friday, March 9, 2012 11:49:55 AM
Subject: Re: [cisco-voip] H323 Gateway needed for SNR mid-call features?

It's been tried and it leads to interesting scenarios.  invoking features like transfer utilize the h323/sip router's dialplan rather than CUCM's.  Then you configure peers to route to CUCM.  IF you're tandeming through CUCM to get the h.323 gateway then you tandem back to cucm so you need ip-ip-gw functionality.  then you have issues with SNR dial-peers overlapping/conflicting with SRST dial-peers.  That leads to some interesting COR configuration.  Down the rabbit hole.

It was a fun lab and whiteboard session with several CCIE's. It could be made to work with numerous limitations.  it's possible but may not be recommended for the masses without some very careful design and functionality choices.

/wes

On Mar 9, 2012, at 11:31 AM, Lelio Fulgenzi wrote:

wonder if i could run the hairpinning on the same router that has the MGCP gateways. that would probably screw up any chance of getting SRST working without confusion though.

---
Lelio Fulgenzi, B.A.
Senior Analyst (CCS) * University of Guelph * Guelph, Ontario N1G 2W1
(519) 824-4120 x56354 (519) 767-1060 FAX (ANNU)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Cooking with unix is easy. You just sed it and forget it. 
                              - LFJ (with apologies to Mr. Popeil)


From: "Nate VanMaren" <VanMarenNP at ldschurch.org>
To: "Wes Sisk" <wsisk at cisco.com>, "Lelio Fulgenzi" <lelio at uoguelph.ca>
Cc: "cisco-voip at puck.nether.net VOIP" <cisco-voip at puck.nether.net>
Sent: Friday, March 9, 2012 11:02:23 AM
Subject: RE: [cisco-voip] H323 Gateway needed for SNR mid-call features?

I think SIP is ok too.  Basically no MGCP because it can’t do the tcl/vxml.
 
From: cisco-voip-bounces at puck.nether.net [mailto:cisco-voip-bounces at puck.nether.net] On Behalf Of Wes Sisk
Sent: Friday, March 09, 2012 8:50 AM
To: Lelio Fulgenzi
Cc: cisco-voip at puck.nether.net VOIP
Subject: Re: [cisco-voip] H323 Gateway needed for SNR mid-call features?
 
my vague recollection is yes.  mid call features depend on the h323 gateway listening in on the call and invoking a tcl or vxml script (increasing fuzziness here).
 
On Mar 9, 2012, at 10:00 AM, Lelio Fulgenzi wrote:


OK, I'm pretty sure this is the case, but I'm just wondering if someone can confirm/deny.

Do I need an H323 gateway for SNR mid-call features?

The document talks about using H323 for mobile voice access, but I'm just wondering if this is a per-requisite for mid-call features like transfer, etc.

http://www.cisco.com/en/US/docs/voice_ip_comm/cucm/admin/7_1_2/ccmfeat/fsmobmgr.pdf

Thanks, Lelio


---
Lelio Fulgenzi, B.A.
Senior Analyst (CCS) * University of Guelph * Guelph, Ontario N1G 2W1
(519) 824-4120 x56354 (519) 767-1060 FAX (ANNU)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Cooking with unix is easy. You just sed it and forget it. 
                              - LFJ (with apologies to Mr. Popeil)


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