Rajesh K.Private profile: Upwork shows its earnings only to signed-in members, so we check it every few weeks, not daily. MRR here is a rough estimate (Upwork's six-month earnings ÷ months active). Last read Nov 5, 2026.

Computer Programming Languages: C++/C Network Protocols Expertise : GSM, HLR, USSD, SMSC, INAP, CAMEL, DIAMETER, 4G-LTE, HSS, 4G, PGW, SMPP, SS7 Protocol software experience: Dialogic, Aricent, Mobicents Jss7 We provide SS7/Sigtran, based development and deployment services in the domain of telecom and VoIP. Stacks Dialogic, Trillium, and Aricent. GSM HLR development for MVNOs with 3G and 2G data. The HLR or Home Location register was developed over Mobicents and Dialogic SS7 protocol stack. The stack uses the Sigtran M3UA layer over SCTP for the connection for ss7 signaling. The solution have key features like Multi-IMSI, Multiple APN profile for data, etc. HSS development for LTE/4G: HSS or Home Subscriber Server is the central database for a subscriber in 4G/LTE. it hold the subscriber profile based on IMSI. For signaling with the roaming network (MME or SGSN), LTE HSS uses diameter protocol signaling. The interface is called S6a/S6b. SMSC based on Ss7, SMPP and SIP(IMS): Providing a complete solution for the SMSC. It could be used as Full SMSC by the MVNO's /MNO's or A2P and other messaging providers. Camel Gateway for online charging. The camel gateway uses Camel protocol over SS7 or Sigtran. The gateway supports online charging for voice, data and SMS. A2P, P2A SMSC solution. We have ready solutions for bulk SMS providers. The solution uses SMPP and SS7/Sigtran for messaging with mobile subscribers. Each ESME which connects to the SMS can represent a separate SCCP global title. USSD Gateway,: ComCode has ready to use a solution for USSD gateway. The USSD gateway can connect the mobile operators over SS7 or SMPP. IOT- IOT is a new concept. Which is the connected network of devices? We provide software development for NB-IOT and IoT. Diameter Gy interface for data charging. Having full exposure for Private network for 4G an 5G. This includes all the components , MMA, AMF, etc. use OpenSources such as Open5Gs and kamailio for setting up the private networks.