4 Dec
2018
4 Dec
'18
12:57 a.m.
Am Montag, 3. Dezember 2018, 06:08:27 CET schrieb Patrick Wakano:
I am using the is_e164() function to validate the
number we receive, and I
come to see that the number +555 was accepted....
After some googling it looks like(it is not very clear though) that 7
digits are the minimum we could have for e164 numbers but after checking
the source code, I saw it accepts anything starting with + and having
between 2 and 16 numbers. So is it really valid to have a number with just
2 digits? What is the case?
Hello Patrick,
I think the implementation was done with a pragmatic approach, to make sure
that we don't reject numbers that are used in the field. The ITU standard
Amendment A mentions the possibility to use national short numbers, for
example. The standard mentions that the maximal length should be 15, but I
think in this case this was also implemented a bit more relaxed.
The original implementation from the enum module allows even longer numbers, I
will check if this should be synchronized.
Best regards,
Henning
--
Henning Westerholt - https://skalatan.de/blog/
Kamailio services - https://skalatan.de/services
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