Dial Plans

[rec9140]

After some great guidance here....I've got some understanding of the dial plans..

What I am after is what kind of dial plans others have to :

1) Route international calls (I'm in the US) ie: If want to dial a number in the UK I should hit 44 then the number (dial plan will add extra dialing digits)

2) Is there something in Voxalots that you can "trap" a number to a fast busy or unable to complete tone or message ie: In the US 900-nxx-yyyy and NPA-976-xxxx and NPA-540-xxxx could be expensive calls. While I doubt any VOIPSP is going to complete them, I would like to put my own equivalent block on them ie: _1900xxxxxxx then some code to trigger the unable to complete or similar. Or work for any number I want to block on the line. Like trapping _911 and it plays a recodring to find a real phone or some thing to that effect. (I already have a nice big sticker on the phone regarding this.)


I've got my local area code down to normal 7 digit dialing and interlata calls back to 10 digit dialing via the dial plan, and would like to do this with international calls so that I dial country code then number ie: 44203xxxxx and I get my London DID sames goes with any other country (country code)number, no 00, or 011 or other wasted POTS based digits. The dial plan will add back the wasted digits as needed for the carrier rules.

Any way to do this with out turning this into a nightmare to support and maintain.

[ylim]

1). This is similar to what you already have for your local number. eg.
(Assuming that the UK number is 8 digits and you are using a UK VSP)
Patern: _44xxxxxxxx
Replacement: 00${EXTEN}
Optional ENUM Replacement: ${EXTEN}

2). I think this can be achived by making sure that the undesirable number will not be trapped by the Dial Plan.

[kurun]

Depending on whether you set up to emulate North American dialling or international dialling, you can set up a dial plan entry toward the top of your dialling plan to send the numbers you want to block to a number that results in a busy signal or a message.

For example :
Patern: _1900xxxxxx. or _001900xxxxxx.
Replacement: *01055555 (Non-valid Voxalot number)
Provider: Sipbroker
ENUM/Geographic Replacements: No

This replacement reults in a message "We are sorry ......"
Alternately, you can send the call to an (unregistered) provider with no credit which results in a fast busy tone usually.

Some other replacement numbers you can try using, again via Sipbroker:
*258902 (Busy tone)
*266300 (Don't get too carried away with this one ......)

Note that the pattern test is for the full length of the number with the last character being a wildcard. This is to remove the possibility of the check being bypassed by adding an extra character.

[rec9140]

Originally Posted by kurun

Depending on whether you set up to emulate North American dialling or international dialling, you can set up a dial plan entry toward the top of your dialling plan to send the numbers you want to block to a number that results in a busy signal or a message.

I consider the numbering plan to be a flat space, thus there are digits that are wasted in dialing.

I don't want to go too deep into it, as I have a very strong opinion on this and its not entirely relevant to this, expect that I despise extra digits like 1-xxx-xxxx just to dial a call in my area code because its considered LD.

I set things up so you dial
NANPA - NPANXXyyyy dials a 10 digit NANPA number
- NXXyyyy dials a number in the same area code

Same should happen for outher countries as well.

(countrycode)number ie:
4420315xxxx

No 00, 011, 1 or other wasted telco digits.

Whats happening on the back end of things to make it work for carriers is another thing. ENUM sorta has the same theory for its look ups

(countrycode)number

VOIP should not carry over the mistakes of the telcos to its dialing mechanism just to keep people who probably shouldn't have VOIP any way happy. Like I said I have a very strong opinion on dialing mechanisms.

Originally Posted by kurun

This replacement reults in a message "We are sorry ......"
Alternately, you can send the call to an (unregistered) provider with no credit which results in a fast busy tone usually.

Some other replacement numbers you can try using, again via Sipbroker:
*258902 (Busy tone)
*266300 (Don't get too carried away with this one ......)

Note that the pattern test is for the full length of the number with

Thanks, I'll play with these to get things worked out. Thats what I needed was what numbers would generate busy, fast busy, messages.

[tomblandford]

Originally Posted by rec9140

VOIP should not carry over the mistakes of the telcos to its dialing mechanism just to keep people who probably shouldn't have VOIP any way happy.

Agreed, that does make a lot of sense. It is much more intuitive to just dial a country code then an area code. I have found that most VoIP suppliers will accept the number without 00 anyway.

The 0 was traditionally used to distinguish local numbers starting with digits 1-9 from national numbers and then 00 to distinguish international numbers without having to wait and see how many digits were dialled.

Removing the 00 would help with using these phone numbers with computer programs like Excel which will get rid of the 00 unless you format the cell correctly.

[rec9140]

Originally Posted by tomblandford

Agreed, that does make a lot of sense. It is much more intuitive to just dial a country code then an area code. I have found that most VoIP suppliers will accept the number without 00 anyway.

The 0 was traditionally used to distinguish local numbers starting with digits 1-9 from national numbers and then 00 to distinguish international numbers without having to wait and see how many digits were dialled.

Removing the 00 would help with using these phone numbers with computer programs like Excel which will get rid of the 00 unless you format the cell correctly.

Some perspective ... in the US, at least in my area Pittbsurgh, Pennsylvania in the NPA 412 till splits with NPA's etc... You could pick up the phone...

Dial NPA-NXX-yyyy and the call went thru didn't matter if it was 800-123-4567, 202-555-1212, etc... same goes for pick up the phone dial NXX-yyyy and the call went thru... None of this blathering about the "You must first dial a 1....."

When I moved/and commuted back and forth from/to West Virginia, the entire state is ONE area code 304, and thus all this 1-NXX-yyyy and some times even 1-304-nxx-yyyy. RUBBISH!

FLorida has this same crap...Same NPA and the witch comes on and "You must first dial a 1....."

Getting to the chase... the whole point of this crap is get the clueless dolts to understand that its a LD call... and some die hard telco guys and I got into it hot over this BS. Its not really relevant to me wether the call is LD or not, about issue with switching etc... Well if Bell of PA in the 80's and 90's before all the new NPA's could figure out how to route it then the rest of the switches in my opinion were FUBAR'D! Like I said I don't wont dwell on this too much as I could rant on this subject alone for quite a while. Suffice it to say its a REALLY SORE POINT with me.

Your post also shed some light on why UK numbers all that 0 at the front...

I guess the whole deal of wasted digits just irks me to death, and your Excel example is a good example of an issue as well. Maybe I just think the same as Excel (scary) and feel that 0 is a waste.

Getting back to the real topic on this, I guess the only real way to set this up is to do a rule for every country code ? ? ? Hmmm.... that seems like a lot of rules I guess I was looking for a way to resolve this with a handful versus a whole slew of them. Maybe when I go full blown */Trixbox....