[cisco-voip] Busy out channels on an mgcp gateway

[Lelio Fulgenzi]

Busy out channels on an mgcp gatewayI've heard people use the following service parameter to do what you are asking. There are five of them available I think.


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      Change B-Channel Maintenance Status 1 : This parameter allows Cisco CallManager to change individual B-Channel maintenance status for PRI interface in real time for troubleshooting. Input Format:
      Device Name = B-channel Maintenance Status
      Example:
      S0/DS1-0 at SDA123456789ABC = 0000 1111 0000 0000 0000 0001(24 bits for T1. Channel number begins with 1 to 24 from left to right. The last one specifies the D-Channel, which does not get affected. In this example, 5th-8th B-Channels are out of service).
      or,
      S1/DS1-0 at DLS2-CM136-VG200-2.SELSIUSCMLAB.CISCO.COM = 0000 0000 0000 0000 0000 0000 1111 1111(32 bits for E1. B-Channel number begins with 1 to 32 from left to right. The 16th channel specifies D-Channel. The last bit does not affect any channel. In this example, 25th-31st channels are marked out of service).
      Explanation:
      The DEVICE NAME MUST exactly match the gateway name on the top of the gateway configuration web page. Copy and paste that field into this service parameter to avoid any manual inputting mistake. Ensure '=' is mandatory and unique to distinguish the DEVICE NAME and BCHANNEL MAINTENANCE STATUS fields. BCHANNEL MAINTENANCE STATUS = xxxx xxxx xxxx xxxx xxxx xxxx xxxx xxxx 
      Where x can be: 
      0 -- In service 
      1 -- Graceful out of service (Change channel status until active call ends if an active call exists on that channel) 
      2 -- Forceful out of service (Tear down active call first; then, change channel status immediately if an active call exists on that channel).
      The system treats any other value as invalid and the value does not take effect. Make sure that the total number of 'x' is either 24 for T1 or 32 for E1. Any other invalid length or mismatch (for example, 24 for E1) gets treated as error, and no action gets taken for that device. 
      SPACE: Optional.
      The spaces between device name and '=', between '=' and BCHANNEL MAINTENANCE STATUS, and between x and x, are all optional. You cannot use any space inside the DEVICE NAME field. 
      To use this feature, the "Enable Status Poll" flag on the gateway configuration page must be checked and updated, then the gateway must be reset for the first time.After this, changing service parameter will take effect without resetting the gateway. 
      Maximum length: 255.
     

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Lelio Fulgenzi, B.A.
Network Analyst (CCS) * University of Guelph * Guelph, Ontario N1G 2W1
(519) 824-4120 x56354 (519) 767-1060 FAX (JNHN)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
"I had a coffee and Coke at lunch today...and now, I've got more jitter than an
IP phone on a long haul 10base2 connection"                                           LFJ
  ----- Original Message ----- 
  From: Ruttman, Peter G. 
  To: cisco-voip at puck.nether.net 
  Sent: Wednesday, December 21, 2005 9:43 AM
  Subject: [cisco-voip] Busy out channels on an mgcp gateway


  I need to reset an mgcp gateway PRI that has inbound DIDs associated with it.  Is it possible to busy out the channels on it so that new calls do not get pinned up on it?  Then I can safely reset the gateway during work hours.

  Pete 


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