IƱaki Baz Castillo writes:
Yes. But IMHO this is typicall in any PBX environment in which users have short extensions (200, 201...) and the PSTN gws are not aware of them.
you certainly don't need b2bua in order to map short extension numbers to e.164 numbers. that is very easy to handle in sr and i have been doing it for years.
-- juha