Hello, if you are a student (or know one) interested in working with SIP and Presence over the summer, earn some money and experience, you have the choice of Kamailio - SIP Router project within SIP Communicator organization: http://www.kamailio.org/w/gsoc-2010/ Registration is now open, up to April 9, more details in above link. If you have further questions, drop an email. Cheers, Daniel -- Daniel-Constantin Mierla * http://www.asipto.com/ * http://twitter.com/miconda * http://www.linkedin.com/in/danielconstantinmierla