Nortel Networks announced several key initiatives in its Succession Interactive Multimedia Server (IMS) programmability plan designed to create an open application environment for packet voice and multimedia applications. The initiatives include a joint marketing and customer engagement partnership with Ubiquity Software Corporation. The two companies will conduct session initiation protocol (SIP) interoperability testing between Ubiquity's SIP Application Server (SAS) and Nortel Networks Succession Interactive Multimedia Server (IMS). Nortel Networks will also support JAIN SIP Servlets as a means to give application developers access to IMS resources "without needing a detailed understanding of all the underlying technology."http://www.nortelnetworks.com