Hi Ash, There are time when you would need to use that match pattern, for example see this tread on NetPro, https://supportforums.cisco.com/thread/2013151
Roger Källberg Consultant Cygate AB ________________________________ Från: Ashar Siddiqui [siddas...@gmail.com] Skickat: den 21 maj 2010 22:58 Till: David Holman Kopia: ccie_voice@onlinestudylist.com Ämne: Re: [OSL | CCIE_Voice] translation rule Thanks David I have already gone through that document many times :) Thanks Wael for your explanation. I was actually thinking that what would a null number be in my example. I have this customer router which has this specific rule for inbound calls. Will it work when PSTN will send "null digits"? doesn't make sense to me. What is a null/unknown digit? Ash> David Holman wrote: I keep this link handy for voice translation questions: http://www.cisco.com/en/US/tech/tk652/tk90/technologies_tech_note09186a0080325e8e.shtml On Fri, May 21, 2010 at 4:15 PM, Wael Agina <waelag...@gmail.com<mailto:waelag...@gmail.com>> wrote: Dear Ashar, The ^$ is catching null, which could be used to catch calls from unkown. example usage, drop any calls from PSTN that has ANI of unkown type. On H323 you could use following rule to do this voice translation-rule 1 rule 1 reject /^$/ voice translation-profile Drop-Unknown translate calling 1 dial-peer voice 1 pots direct-inward-dial incom called . call-block translation-profile incoming Drop-Unknown For you example may be it i setting unknown ANI to be 42000 for example, bu not sure, need to be tested. Regards, Wael Agina On Fri, May 21, 2010 at 11:02 PM, Ashar Siddiqui <siddas...@gmail.com<mailto:siddas...@gmail.com>> wrote: Hi, I know I may sound stupid to some but I really want to know the purpose of ^$ in a translation rule for e.g: voice translation-rule 100 rule 1 /^$/ /42000/ ! ^$ is null...what does it mean? what is a null number? Ash> _______________________________________________ For more information regarding industry leading CCIE Lab training, please visit www.ipexpert.com<http://www.ipexpert.com> -- Thanks and Best Regards, Wael Agina _______________________________________________ For more information regarding industry leading CCIE Lab training, please visit www.ipexpert.com<http://www.ipexpert.com>
_______________________________________________ For more information regarding industry leading CCIE Lab training, please visit www.ipexpert.com
