[OpenSIPS-Users] Delete alias references in SIP messages

[Guillaume Lacroix]

Hello,

I would like to know if there an easy way to remove any reference to the 
SIP alias in the SIP messages for some incoming calls and to replace 
them with the SIP username.

Roughly, a user dial the number 012345 from the PSTN. The call goes to a 
PSTN GW and is then sent to OpenSER through an INVITE message (INVITE 
012345 at domain...). The To header also contains 012345 at domain. After the 
look up in the alias DB, the alias is replace by the SIP username, but 
it remains in the To header field.

What I would like to do is to remove completely the alias reference and 
replace it with the username, not only in the INVITE but also in any 
following messages (so that the messages received by the UA never 
contains any reference to the alias) I try to use append_hf/remove_hf on 
the To header, it works, but the alias still appears in some other 
messages (ACK..).

Does anyone know if there is a way to achieve that (not for all incoming 
number but only the number starting with 0123 for example) ?

Thanks and regards,
Guillaume