If your phone is extension of CIsco CUCM then you can use JTAPI API to implement such kind of features. You need to follow Cisco JTAPI developer guide. You can also download MakeCall sample.
Regards,
Umesh
Hi Umersh,
Many thanks for the reply.
Sorry for my naive questions , but what exactly is Cisco CUCM . Is it some hardware which I need to install ?
Also if I want to do a POC( Proof of concept) of the originally stated problem , may I get any simulator (for free) from Cisco?
Will hightly appreciate your inputs on the same.
Regards,
Ajay Saxena