Oh thats great!! Can I use this as soft phone for my Asterisk-based PBX?

yes these phone are awsome

if you want you can even have it connect to your default wifi automatically and have all calls go through it by default. the integration is far better than any 3rd party client could ever hope for


_________
zennet

anyone, know, how to connect a nokia e62 to a sip service provider, It can be done using, 3g network ?

Most of the newer Nokia phones (the E and N series such as E51) have
built in SIP clients and Wifi built-in. This means that anyone who buys one of these phones can use VoIP alongside their cellular service when
they are in a hotspot. read more about it at voipngn.blogspot(dot com)