08-05-2009 08:55 AM - 편집 03-15-2019 07:14 PM
Hello,
I have a design where I want to propose 10 digit dial plan. The size of the client is so huge anything less than 7 is not possible.
My question is: How do I eliminate inter digit timeout for the following scenario
Extension: 9182345555
LD: 91[2-9]xx[2-9]xxxxxx
Do I HAVE TO use an On-net code? or are there any other options?
날짜: 08-05-2009 09:09 AM
We just moved from a 10digit Dial plan, I would not recommend it.
날짜: 08-05-2009 09:10 AM
what were the issues you ran into?
날짜: 09-11-2009 07:33 AM
I'm doing one now, NANP, but all internal DNs will start with an 8, effectively making that the On-net access code. 9 will be the PSTN access code.
날짜: 09-11-2009 07:35 AM
So how does your internal dialing work? how many digit and what does it start with?
날짜: 09-11-2009 07:39 AM
Pretty much straight out of the SRND. Local, site specific XLATE partition to allow abbreviated intra-site dialing. Users will dial 8 plus the ten digit number to dial inter-site. Really the 8 is part of all internal DNs, so it is actually an 11 digit dial plan. This is a very big deployment, with a mix of existing TDM and Cisco installations migrating to a single cluster.
날짜: 09-11-2009 07:43 AM
You will run into inter digit time out when a user is dialing bettwen sites vs dialing internally.
So for an extension 8475558471, a user internally dials 88471 vs a user from outside will call 88475558471. Correct?
날짜: 09-11-2009 08:47 AM
In that situation, the intra-site translation would have to either be more or fewer digits in order to avoid the overlap. The intra-site translation can vary in length from site to site.
날짜: 09-13-2009 05:15 PM
Just a side note, I implemented a couple of 10 digit internal dial plans and one requirement I presented was that the outside PTSN access code needed to be a 0 instead of a 9. The logic is that there are is no area code that starts with a 0 therefore avoiding a dial plan overlap. At first they did not care for the idea because of the usual argument that some locations like to dial 0 internal for operator. But after explaining the translation nightmare, inter-digit timeout, etc.. they were OK with it. Otherwise I told them if they wanted to stick with a 9 for access code that they should choose some other dial plan that did not base extensions on the full 10 digit DID.
Hope that helps
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