Dialing Plan 1

[rlgriffin]

I need some help with some config issues. Soon we will be adding a new dial prefix to our dialing plan. Currently we have 4 NXXs soon to be 5. As of now we are doing 5-digit dialing, but are going to have to go to seven digit dialing becuase we will be hitting the maximum # of cdp entries at 20,000. We have the parent site, 81C, 3- 11C, and 4- 1000M with tie lines between all. Currently when dialing between switches we build an RLI route at the 81 with VNR, etc. and route the number to appropriate location. My question is how will we do this when we go seven digit dialing? And if this is possible will I have to rebuild every key on every phone or can I build "building accees codes" for on-net dialing and keep the keys programmed as is? And is there any other way to do this?
Maybe I am overthinking this, but this seems to be a big problem!

Thanks for the help/suggestions.

 

[johnpoole]

not real good news. you can use 7 between switches and leave the internal alone, but, the users need know the switch the sets are on to be able to dial.. major headache and it only works until the next major change... i never use vnr, dsc's are so much faster across the networks.. i would perfer to change all dn's to 7 digits and route the internal nxx's with 3 digit steering codes.. or at the largest 5 digit... interesting problem to work on but without detailed network info, i can only give general thoughts

john poole
bellsouth business
columbia,sc

 

[yyrkroon]

maybe i'm missing something here, but why not use UDP instead of CDP. Assigned unique LOC codes and build out NARS.

 

[johnpoole]

you can do that if you want to dial ac1 or ac2 before dialing the distant site.. i perfer for my users to dial either the just the dn for internal calls... your way will work, i have never setup a switch with users dialing the acod or ac1/2 to dial between switches... but on this site i only have 7000 users, if i went to 20,000 i might use 9 plus... the bad thing is when a number moves between switches... today users keep the number and i add dsc's. with a hospital. training the end users is not an option, if they dialed 4000 to get security, don't ask them to dial 9 4000, or xxx 4000 next week... i would have a revolt

john poole
bellsouth business
columbia,sc

 

[yyrkroon]

CDP is great when you have unique DID ranges in each PBX within your multisites network, but can be a major head-ache when you don't.

This is where UDP steps in, doesn't matter what the DID range is because the steering is done via LOC codes.

Sure, the enduser will have to dial extra digits and will have to know what the LOC codes are for the other sites, but never again will you have to request a particular DID range going forward in your expansion/growth.

 

[rlgriffin]

currently I do 5 digit dialing for on post dialing
4+ for local calls
7+ long distance
8+ DSN
3 is a prefix for 5 digit
2 is a prefix for 5 digit
6 is a prefix for 5 digit
5 is a prefix for 5 digit

 

[johnpoole]

not a bad plan, i am writing a script now to upgrade to 5 digit, but we are adding 4000 stations in a avaya to that plan.. there 1st will be 6 (796 nxx) ours will be 4 (434 nxx).. all smaller (opt 11) ties will dial with the same plan as the internal... 4xxxx... still small enough to be clean

john poole
bellsouth business
columbia,sc