Is it possible to make call from softphone to land phone in PSTN netwotk using Asterisk Server?
Thanks
Yes. No real difference from doing it with a hard SIP phone, except that the latter is likely to be more reliable (issues with the phone, not with Asterisk).
Could I suggest that you need to read the book at asteriskdocs.org/, as I think you need to do some background reading on how Asterisk can be connected to the PSTN.
Softphone assumed to mean a SIP phone emulated by a PC.
Pedantically, Asterisk is both client and server.