Proxies can't originate new calls, and are pretty much obligated to 
forward all requests and replies as rendered by both endpoints.  B2BUAs 
can create call legs and interpret and translate feedback as they wish.

Vito Korleone wrote:

> Hi everybody! I 'm a new member in this group of SIP people :-). 
> 
> So, here's my question,
> 
> Why "we" need a B2BUA?? Can't we just have the same functionality if
> we replace him with a proxy and insert the Record Route field to trace all 
> messages between the subscribers??
> 
> thanks,
> 
> Nikos
> 
> 
>       
> ___________________________________________________________ 
> Χρησιμοποιείτε Yahoo!; 
> Βαρεθήκατε τα ενοχλητικά μηνύματα (spam); Το Yahoo! Mail 
> διαθέτει την καλύτερη δυνατή προστασία κατά των ενοχλητικών 
> μηνυμάτων http://login.yahoo.com/config/mail?.intl=gr 
> 
> 
> _______________________________________________
> Sip-implementors mailing list
> [email protected]
> https://lists.cs.columbia.edu/cucslists/listinfo/sip-implementors


-- 
Alex Balashov
Evariste Systems
Web    : http://www.evaristesys.com/
Tel    : (+1) (678) 954-0670
Direct : (+1) (678) 954-0671
Mobile : (+1) (678) 237-1775
_______________________________________________
Sip-implementors mailing list
[email protected]
https://lists.cs.columbia.edu/cucslists/listinfo/sip-implementors

Reply via email to