Design and development for VoIP service in ONTs/Home devices.
Support and maintenance
Deliverables :
Feature development
Bug fixing
New feature
Unit testing
Functional testing.
Requirements :
Experience: 4+ years
Strong development & debugging understanding on C / C++ in multi process/ threaded environment with following skills
Strong understanding on "VoIP(SIP/H248), T38 , SIP over TCP, VoLTE, voice quality/QoS, DSP ,Voice codecs, RTP/RTCP, RFC2833" and Management protocols: OMCI, TR098/TR104.
Good Understanding RJ11, Z-interface specs.
Well versed with debugging tools like SIPP, Wireshark, Valgrid, SIPP Tool, Valgrind Memory Profiling Tool, GDB.
understanding different SoC Architecture including 32 bit, 64bit and respective tool chains and able to collaborate with different Vendors to make the solution up and running.
strong understanding on Linux , IPC techniques, user space and kernel space deep understanding and good understanding on network architecture is preferred
Understanding of IPV4/IPV6 addressing and TCP/IP and basic understanding of L2/L3 routing.