I think you need the "no h225 timeout keepalive" configured under the "voice service voip / h323".This will allow the call to stay up after the GW stops receiving keepalives from the CM. http://www.cisco.com/en/US/products/sw/voicesw/ps2169/products_configuration_guide_chapter09186a0080558061.htmlH.323 Gateways and SRST
On H.323 gateways, when the WAN link fails, active calls from Cisco IP phones to the PSTN are not maintained by default. Call preservation may work with the *no h225 timeout keepalive* command, but call preservation using the *no h225 timeout keepalive* command is not officially supported by Cisco Technical Support. Under default configuration, the H.323 gateway maintains a keepalive signal with Cisco CallManager and terminates H.323-to-PSTN calls if the keepalive signal fails, for example if the WAN link fails. To disable this behavior and help preserve existing calls from local IP phones, you can use the *no h225 timeout keepalive*command. Disabling the keepalive mechanism only affects calls that will be torn down as a result of the loss of the H.225 keepalive signal. For information regarding disconnecting a call when an inactive condition is detected. see the Media Inactive Call <http://www.cisco.com/univercd/cc/td/doc/product/software/ios123/123newft/123t/123t_2/gt_icd.htm> Detection<http://www.cisco.com/univercd/cc/td/doc/product/software/ios123/123newft/123t/123t_2/gt_icd.htm> document. On Tue, Mar 10, 2009 at 2:30 AM, Cliff McGlamry <cl...@mcglamry.net> wrote: > I believe there is also a service parameter command to allow call > preservation in the event CCM goes down under h.323 in the CCM Service > parameters. Seems like I've seen it there.... > > ----- Original Message ----- > *From:* Kumar, Narinder <narinder.ku...@uxcg.com.au> > *To:* mmailb...@yahoo.com ; ccie_voice@onlinestudylist.com > *Sent:* Tuesday, March 10, 2009 2:18 AM > *Subject:* Re: [OSL | CCIE_Voice] h.323 gateway config & call preserve > > Need to add some more commands > > > > *From:* ccie_voice-boun...@onlinestudylist.com [mailto: > ccie_voice-boun...@onlinestudylist.com] *On Behalf Of *Balamurugan > Singaram > *Sent:* Tuesday, 10 March 2009 4:43 PM > *To:* ccie_voice@onlinestudylist.com > *Subject:* [OSL | CCIE_Voice] h.323 gateway config & call preserve > > > > Hi, > > > > For h.323 gateway config & call preserve in BR1 site the following config > are ok, please some one comment on h.323 gateway config & call preservation > ? > > voice class h323 1 > h225 timeout tcp establish 3 > > > > voice class codec 1-----------------------------------Need to add this > > codec preference 1 g711ulaw > > codec preference 2 g711alaw > > codec preference 3 g729r8 > > > > interface loopback 0 > h323-gateway voip bind srcaddr 172.27.x.x > > h323-gateway voip interface -----------------------------------Need to add > this > > > dial-peer voice 10 voip > destination-pattern 2...$ > session target ipv4:172.3.64.100 > dtmf-relay h245-alphanumeric > no huntstop > voice-class h323 1 > > voice-class codec 1-----------------------------------Need to add this > > no vad > > ! > dial-peer voice 11 voip > destination-pattern 2...$ > session target ipv4:172.3.64.101 > dtmf-relay h245-alphanumeric > preference 1 > voice-class h323 1 > > voice-class codec 1-----------------------------------Need to add this > > no vad > > ! > dial-peer voice 9 pots > destination-pattern 9T > port 0/0/0:23 > ! > > on Service parameter: > Stop routing on Unallocated number flag - false > > > > Thanks > > > ------------------------------ > > New Email addresses available on Yahoo! > <http://sg.rd.yahoo.com/aa/mail/domainchoice/mail/signature/*http:/mail.promotions.yahoo.com/newdomains/aa/> > Get the Email name you've always wanted on the new @ymail and @rocketmail. > Hurry before someone else does! > > ------------------------------ > CONFIDENTIALITY - The information contained in this electronic mail message > is confidential and is intended solely for the addressee(s). If you are not > an authorised recipient of this message please contact Getronics Australia > immediately by reply email and destroy/delete this message from your > computer. Any unauthorised form of reproduction of this message, or part > thereof, is strictly prohibited. > DISCLAIMER - Unless specifically indicated otherwise, the views and > opinions expressed in this email are those of the sender and not Getronics > Australia. While we endeavour to protect our network from computer viruses, > Getronics Australia does not warrant that this email or any attachments are > free of viruses or any other defects or errors. It is the duty of the > recipient to virus scan and otherwise test any information contained in this > email before loading onto any computer system. > >
