El Lunes, 12 de Enero de 2009, Daniel-Constantin Mierla escribió:
By some reason, the '#' is used a lot in telecom/mobile operators dialed extensions (e.g., charging credit on mobile phone),
Well, IMHO the reason is that key '#' appears in all the phones :)
not sure why is not allowed in SIP.
I assume this is due to inheritance from common URI syntax (an username in a mail URI doesn't allow it also).
That is the reason kamailio (openser) does accept '#' in the username. If you want to be strict compliant to SIP-RFC then you have to use the transformations. Not sure what would be the best to make default for the future ....
I think it's ok to allow it, but it would be nice if Kamailio would decode "%23" as "#" directly, without the need of using transformations. In this way, if a strict compliant phone encodes "#" as "%23" in the RURI it would be automatically detected by Kamailio as a "#" symbol.
Could it be feasible? Regards.