Telco tells me my BCM 200 is not configured for 10 digit dialing

[jeaumag]

My apologies--I'm sure this question has been answered a dozen times already but I lack the vocabulary to know it!

Here's the deal: I have an area in NC where ten digit dialing is required but dialing via my BCM 200 hooked up to a PRI and putting a "1" in front (for 11 digits) will get you the message "it is not necessary to dial a one or a zero when dialing this number." But dialing a ten digit number with no leading 1 you get the message "your call could not be completed as dialed..." If I place the 10 digit call with my cell phone it goes through as expected. The Telco told my coworker that "your PBX must not be configured to support 10 digit dialing for area code 910." We're in area code 919. This problem makes me think of this old thread: thread1361-1223492 but then not totally.

So my rudimentary understanding of the BCM's Dialing Plan is that if it sees a sequence of N digits dialed on a handset it finds a private or (in this case) public network DP that matches the length of the dialed number and tacks whatever the DP says at the front as a prefix. In the 11 digit example from above presumably the default DP is simply passing the sequence along unmodified so it's 1###-###-####. In the ten digit case I suppose another DP is applying some wild prefix so the number isn't even recognized by the phone network. Am I even close?

Now thread thread1361-1223492 mentions changing the default DP. So my concern are:

1) Will changing the default DP from 7 to 10 digits make local 7 digit calls not work? How safe is it to change the default? This is a live phone system under pretty heavy use.

2) Is there a better way to do this? I noted I cannot add a DP with an empty prefix so it looks like the default is the only answer.

3) Is the Telco just plain wrong and the problem is not with the PBX?

Thanks for any help you can provide and sorry if this is a bonehead question--what can I say, I write software for living and configuring PBXs isn't on my resume!

Joe

 

[bluemr2]

It sounds like you need to change the default public DN length to 10 from 7. You can use bcm monitor to see the digits that are being passed to the telco. It will not stop the ability to use 7 digit dialing. The calls may take a little longer to get out of the phone system, but this is the EASIEST way to fix the problem, and will allow you to 10 digit dial to all area codes if more are added. The BETTER way is instead of changing the default from 7 to 10, add a new entry (you can). It sounds like you only need to 10 digit dial to the area code 910. If thats the case add 910 and put dn length of 10. In the future though, if you need to 10 digit dial to another area code, you will need to add another entry.

 

[jeaumag]

BlueMR2,

Nice car, BTW.

Thanks--I chose the easy route for now and yes, there is a short delay for 7 digit dial-out but it's not bad.

I don't want to pester you but I'm not 100% sure I understand the "better way." So you are saying I'd add a new entry with:

DN prefix: 910
DN Length: 10

And that will cause a number like 910-###-#### to go out to the public network as a 10 digit dial? Guess I took the prefix as something that gets ADDED but is it really a pattern that is MATCHED?

Thanks!

 

[bluemr2]

You are exactly right. It is matched, not added. It looks at the dialed number from left to right (minus the destination code that gets stripped). If it finds a match it will look for the dn length for the amount of digits to wait for. If there is no match, it will use the default which you will change back to 7.

 

[jeaumag]

BlueMR2,

Thank you so much for helping this newb to make at least a few fumbling steps on the path to PBX Nirvana! I did as you suggested:

1) Reset the Prefix Default back to its original 7 length to undo the "easy way"
2) Created a new Public DN length entry with prefix of 910
3) Changed the length of the newly created entry from its original value of 3 to 10
4) Tested that local 7 digit dialing has no delay, tested that 10 digit dialing to areas that are not a toll call went through, tested that dialing the 910 area code numbers that ARE toll calls worked fine. All tests passed.

Thank you again and maybe I can answer a software development question for you someday,

Joe

 

[steeviedude]

Hello,

Do you think this fix would also apply to following scenario
BCM call to a network CS1000 handset with CFWD all to UK mobile using SPN of 9 plus 11 digit number.
We then see that redirected number sent back to the BCM in UIP log is only first 8 digits including the 9 routing code and we get massage on handset no chan avail.

If not let me know and will start new thread for this issue.

Many thanks

 

[bluemr2]

If the extension works without it being forwarded, then I doubt it. Once the call hits the cs1000 the bcm should be out of the picture. You can always try it though. Set the default to 12 and see if it works. Other calls will still get out of the system, just take longer to complete.

 

[steeviedude]

Cheers Bluemr2

You were correct the change of digits did not affect the redirection messaging seen on the CS1000.

Case with Avaya now so many thanks for taking time to respond.