Hi, I'm trying to explore the possibility of developing my own event package for PJSIP (to use with asterisk) to respond to avaya specific SIP subscribe messages. I have some avaya 9608 phones and want to get the advanced avaya ppm features working on them. I have found a blog online with some code to modify the current. I have found someone online who has posed some code to modify the old asterisk chan_sip driver to allow the advanced features to work and I am hoping to use the basis of this code to create a PJSIP module to respond to the subscribe events etc... I have limited experience of the C programming language but I have over the years developed a fair amount of software in a few different languages (currently using the dreaded PHP...) I wondered if you may be able to point me in the right direction of how to create a module to respond to subscribe events etc.. and then how to compile the module and enable it in PJSIP / asterisk. I have tried reading the various developer guides etc but either I feel I am looking in the wrong place as they don't seem to provide a how to compile a single modue / enable a module section. I know this is very vague but I am keen to mess with the code and see what I can make work. If you can help me in any way I would appreciate it. -- *Calum Bulmer **Director | Useful Information Ltd* direct dial: 07887 574003 email:calum.bulmer@uiltd.co.ukphone:01423 594582 web:www.uiltd.co.uk <http://www.uiltd.co.uk/> Registered in the UK 7946074 Registered office: 14-15 Regent Parade, Harrogate, North Yorkshire, HG1 5AW <http://conference.phpw.org.uk/phpnw13> Please note, all prices quoted are, in the absence of specific written agreement to the contrary, estimated only. The information transmitted is intended only for the person or entity to which it is addressed and may contain confidential or privileged material. Any review, retransmission, dissemination or other use of, or taking of any action in reliance upon, this information by persons or entities other than the intended recipient is prohibited. If you received this in error, please notify the sender and delete the material from your computer.