Thanks Paul and Brett for prompt response.
Regards,
Ambrish
On Thu, Nov 20, 2014 at 11:41 PM, Paul Kyzivat <pkyzi...@alum.mit.edu>
wrote:
> On 11/20/14 1:38 AM, Ambrish Kumar wrote:
>
>> Hi All,
>>
>>
>> We read the RFC 3966 and understood that the global number should be
>> prefixed with “+” and if it is not prefixed with “+” then it is considered
>> to be a local number and a phone-context is a MUST.
>>
>>
>>
>> But the section 7.4 is a bit confusing to the ABNF syntax of global
>> number.
>>
>> Does it mean that, if the user dials “00” prefix as an example
>> (“00919840012345”) and it reaches the server without a phone-context, do
>> we
>> still need to consider it as a global number in the server side..?
>>
>
> I agree with Brett. If the user dialed “00919840012345” then your only
> valid way to form it into tel URI format is to reformat it into global
> number format ("+1919840012345") before sending to the server.
>
> While you could *syntactically* form it into local-number format, such as:
>
> tel:00919840012345;phone-context=+1
>
> that violates the semantic rule that it must be formatted as a global
> number if that is a valid representation.
>
> If you can't do the global number conversion locally, then you can format
> it as a sip URI in dialstring format [RFC4967]:
>
> sip:00919840012345;phone-context=+1...@example.com;user=dialstring
>
> If we consider that way, the ABNF syntax is contradicting.
>>
>> Kindly clarify the section 7.4 RFC 3966:
>>
>> 7.4. Do Not Confuse Numbers with How They Are Dialed
>>
>> As an example, in many countries the E.164 number "+1-212-555-3141"
>> will be dialed as 00-1-212-555-3141, where the leading "00" is a
>> prefix for international calls. (In general, a "+" symbol in E.164
>> indicates that an international prefix is required.)
>>
>
> This is telling you that dial strings need to be reformatted to put them
> into tel format.
>
> Thanks,
> Paul
>
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