I'm an intern at a telecommunications operator and my task is to create an application that enables me to send sip (session initiation protocol) requests with the header fields values that I specify. For example generate a register request with the via, from, to, contact and authentication header fields values that I supply.
PS: I don't want to create a hole sip client, I just want to create register and invite messages with specific header field values.
I've found this method (level7systems.co.uk/en/blog/Click+to+Call+with+PHP-SIP) to be relevant but I'm not sure if it's capable of doing what I need exactly
Is this possible using php?
If not what would be the best programming language to create such an application?