[cisco-voip] SRST and dial peers and trunk groups and CallManager MGCP config downloads

Lelio Fulgenzi lelio at uoguelph.ca
Fri Oct 8 22:14:36 EDT 2010


Agreed. It seems like H323 is the best in the long term. I was hoping  
to avoid a change to H323 under pressure like this though.

…
Don't look at me, my iPod maid that spilling mistake.

On 2010-10-08, at 7:39 PM, Tim Smith <smithsonianwa at gmail.com> wrote:

> This is a nice reason for using h323 or even sip now and avoiding  
> ccm manager config and mgcp.
>
> It has bugged us here in Australia for years in partial E1 configs.
>
> Also hate the lack of call preservation in a fallback!
>
> Cheers,
>
> Tim
>
> Sent from my iPhone
>
> On 09/10/2010, at 2:12, Lelio Fulgenzi <lelio at uoguelph.ca> wrote:
>
>> I'm thinking that might be the way to go. remove the ccm-manager  
>> config command once i've downloaded the config. If I make any  
>> changes on CallManager, then I re-issue the ccm-manager config  
>> command and reapply the trunk group settings on each serial  
>> interface.
>>
>>
>> ---
>> Lelio Fulgenzi, B.A.
>> Senior Analyst (CCS) * University of Guelph * Guelph, Ontario N1G 2W1
>> (519) 824-4120 x56354 (519) 767-1060 FAX (JNHN)
>> ^^^ 
>> ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
>> Cooking with unix is easy. You just sed it and forget it.
>>                               - LFJ (with apologies to Mr. Popeil)
>>
>>
>> From: "VoIP Guy" <ciscovoiper1 at gmail.com>
>> To: "Matthew Loraditch" <MLoraditch at heliontechnologies.com>
>> Cc: cisco-voip at puck.nether.net, lelio at uoguelph.ca
>> Sent: Friday, October 8, 2010 10:48:23 AM
>> Subject: Re: [cisco-voip] SRST and dial peers and trunk groups and  
>> CallManager MGCP config downloads
>>
>> It might just be worth disabling the command ccm-manager config  
>> which means that your config should not be overwritten.
>>
>> On Fri, Oct 8, 2010 at 3:32 PM, Matthew Loraditch <MLoraditch at heliontechnologies.com 
>> > wrote:
>> I don't think you have a choice. The serial port configs are  
>> controlled by ccm in mgcp mode its always going to overwrite  
>> anything not from ccm when it resets.
>>
>> Sent from my Android phone using TouchDown (www.nitrodesk.com)
>>
>>
>> -----Original Message-----
>> From: Lelio Fulgenzi [lelio at uoguelph.ca]
>> Received: 10/8/10 10:10 AM
>> To: voyp list [cisco-voip at puck.nether.net]
>> Subject: [cisco-voip] SRST and dial peers and trunk groups and  
>> CallManager MGCP config downloads
>>
>> So here's my scenario:
>> 3845/3945 router with two or more PRIs
>> PRIs are in MGCP mode using "ccm-manager config" to download configs
>> router acts as SRST so MGCP gateways go into H323 fall back
>> I had tried configuring trunk groups to use with the dial peers so  
>> i wouldn't have to duplicate them for each PRI. This worked until  
>> the second SRST trigger. So the behaviour was this:
>> configure trunk group membership on serial interface as instructed  
>> by TAC
>> configure dial peers to point to trunk group
>> trigger SRST, make calls, calls work
>> revert back to normal operation
>> router downloads MGCP config from CallManager, effectively wiping  
>> out the trunk group membership on serial interfaces
>> trigger SRST, make calls, calls fail because there are no trunk  
>> group members
>> How are others handling this scenario, i.e. you are using MGCP with  
>> "ccm-manager config" command and SRST and trunk groups?
>>
>> Why wouldn't CCM allow for a trunk group membership command? I even  
>> checked on version 7.1 and there's nothing there. :(
>>
>> ---
>> Lelio Fulgenzi, B.A.
>> Senior Analyst (CCS) * University of Guelph * Guelph, Ontario N1G 2W1
>> (519) 824-4120 x56354 (519) 767-1060 FAX (JNHN)
>> ^^^ 
>> ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
>> Cooking with unix is easy. You just sed it and forget it.
>>                               - LFJ (with apologies to Mr. Popeil)
>>
>>
>>
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>>
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>
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