Urgent need of Sr. Software Engineer-ISDN Developer for Gurgaon, we are looking for a candidate should be B. Tech/MCA and has 3 to 4 years experience with the knowledge of C and should have good troubleshooting & debugging skills and must have experience in Call Control (wireline and Mobile Networks), Mobility Management, OAM & Intelligent Networks (e.g. CAMEL-SSF), H.323 Protocol Stacks, ISDN-BRI & PRI Protocol Stacks, Multimedia Streaming, RTP, RTCP, UPnP, TCP/IP protocol stack, SS7, SIP, Mobility, audio/video codecs and MSC protocols like ISUP, Salary negotiable.