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

[Lelio Fulgenzi]

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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