[asterisk-users] + on Caller-ID

C F shmaltz at gmail.com
Thu Dec 2 20:31:44 CST 2010


When sending CLID in the US it should never contain more than 10
digits (don't include the 1). In fact some providers will BLOCK your
call if you do.

On Thu, Dec 2, 2010 at 2:24 PM, John Novack
<jnovack at stromberg-carlson.org> wrote:
> Some discussion on other lists regarding this, but the "+" should NOT be
> part of the sent CLID, and isn't sent by the CLEC's. There IS some
> discrepancy regarding the "1" in the US. Some send, some do not. This
> can make for some additional coding when parsing
> The "+" is generally used only in print, though some mobile phones add
> internally.
> It is unfortunate that there seems to be no solid rule followed. the
> same can be said regarding dialing in the US, with each state now
> allowed to set it's own rules.
> It is generally considered, outside the PUC chambers, that 10 digits for
> local and 11 digits for toll are proper, but in some locales 11 digits
> for all calls is mandated, where overlays are in use. Some (diminishing
> ) locations with 7 digit local dialing still exist. Most expansion (
> though not all ) in the last several years have been with NPA overlays.
> Splits end up as a more expensive solution, especially for the users,
> and once all electromechanical switches were retired, back in the early
> 1990's there was no longer a need for splits in NPA's.
>
> In summary, no "+" always a "1"
>
> John Novack
>
>
> Jeff LaCoursiere wrote:
>> On Thu, 2 Dec 2010, Matt wrote:
>>
>>
>>> I've had this discussion in the office and with some vendors, but no
>>> one has a solid answer, hopefully someone here does.
>>>
>>> What is the proper way to format a caller-ID here in the U.S.?
>>>
>>> Is it:
>>> +15705551212
>>>
>> Yes.
>>
>>
>>> or is it
>>> +5705551212
>>>
>>>
>> That would represent a call to Columbia :)
>>
>>
>>> I've always seen it +15705551212, but as I understand it the country
>>> code for the US is 011, which to me would indicate you put
>>> 011-570-555-1212 as the callback number.
>>>
>>>
>> The country code for the US is "1" (actually all the NANPA countries, so
>> Canada, Mexico, and much of the Caribbean).  "011" is what you dial from
>> within NANPA countries to prefix a country code, so to dial Coumbia,
>> for example, you would dial 011 57 xxxxxxxx...
>>
>> > From other countries that would be different.  From the UK, for example,
>> the same call would be 00 57 xxxxxx... (if I recall correctly!).
>>
>> The "+" represents whatever your local country uses for international
>> access, and only precedes the country code.
>>
>> Cheers,
>>
>> j
>>
>>
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>>
>
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>
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