Development & Testing Services for IMS & VoLTE

Simnovus Telecom Testing CoE

The protocols and interfaces for delivering Voice over LTE (VoLTE) services are complex, however Simnovus expertise will ensure assurance of IMS and VoLTE Solutions with regards to compliance and measuring performance of Evolved Packet Core (EPC) and IP Multimedia Subsystem (IMS) networks. Our complete set of interface and protocol expertise can effectively be used in functional and load testing of IMS and VoLTE network elements.

IMS testing is key to deploy high-performance VoLTE Services

An IP multimedia subsystem (IMS) core network is the service delivery architecture that delivers high-quality and highly reliable VoLTE services. It is therefore crucial for NEMs and NSPs to not overlook testing the IMS network in both lab and live environments to ensure optimal performance.

Single radio voice call continuity (SRVCC) and enhanced SRVCC (eSRVCC) services give subscribers impressive flexibility to seamlessly access VoLTE services across 2G, 3G and LTE networks. However, as more and more VoLTE deployments hit the market, there is an increasing need for network equipment manufacturers (NEMs) and network service providers (NSPs) to better understand and test these complex networks, in conjunction with their SRVCC and eSRVCC services, so as to reduce deployment delays, poor quality of service (QoS) and network failures.

Simnovus can perform functional test for conformance, regression tests, comprehensive functional tests for VoLTE Services, QoS, as well as performance tests.

Challenges for IMS & VoLTE Solutions

For IMS Core vendors it is important to perform capacity testing, which typically refers to performance metrics and the simulation of thousands of handsets.
For LTE chipset and handset vendors it is important to have a feature testing system for IMS UE applications and IMS servers capable of simulating signaling and media, including end user experience and call features testing. For this segment it is of crucial importance to be able to quickly and reliably pinpoint and resolve quality-related problems as they occur.
For service providers it is important to perform interoperability and end user experience testing, audio metrics, and the simulation of thousands of handsets. Providing a high level of quality can present a considerable challenge. It is essential to ensure VoLTE service readiness.

At a Glance

Simnovus aims to be a preferred partner for enterprises that develop software products based on Telecom Wireless, along with providing QA / Testing services (products & services).

  • Focussed on Telecom Wireless, Mobile & Internet technologies
  • Expertise on telecom product development (Wireless), strong on all latest technologies in telecom wireless networks (2G, 3G, IMS, WiMAX, LTE..). We have telecom teams who are one of the first ones in India who worked on LTE & Air Interface.
  • Deployment, testing of telecom network equipments and solutions
    Focus on implementation, support, development, upgrade, rollouts & QA services for Telecoms
  • Simnovusbrings in a very strong competency pool and experienced professional expertise that makes project commitments more reliable and consistent.
  • Proven offshore delivery model to provide competitive edge.
Key Service Offerings
  • Product Development on C, C++, Java
  • Field deployment & testing of telecom equipments
  • Proprietary scripting for baseline releases
  • Applications for all technology generations- GMS, CDMA, UMTS, LTE (RAN, EPC, Air).
  • Telecom Wireless Consulting
  • E2E QA solution for LTE, EPC, IMS, WiMAX
  • Regression, Load Testing
  • Expertise on various simulators to test against real/simulated SUT/DUT
  • Bug tracking; test plans & execution
  • Sanity & regression tests of new packages/baselines


Simnovus areas of Expertise:

Simnovus can help in developing robust solutions on IMS and VoLTE as well as complete VoLTE/RCS testing solution that includes IMS Core, XCAP Server, IMS UE, network impairment and media quality testing as well as media analysis.
We possess good understanding on audio and video quality measurement and video telephony testing, including motion level and codec testing, along with IMS/LTE test cases employing various scenarios to emulate the network’s UE and IMS Core, QoS, and interoperability.

We offer testing services on a wide variety of test case simulations, including SIP, IMS, RTP, Audio and Video testing. For testing, we can simulate media from various vendors in various formats, as well as different a variety of codecs including as AMR-WB, AMR-NB, H.264 and MPEG4. We also have command over a vast range of related testing areas, including authentication (AKA-MD5, AKA-V2, Digest), Security (SigComp, TLS, IPSec), IPv4, IPv6 Call Features, GSMA test cases such as IR.92, IR.94.. Audio and Video Test Cases based on AMR-WB, AMR-NB, H.263, H.264 and more.

Protocols: SIP, SDP, IMS, XDM, MSRP, RTP, RTCP, IP-SEC, TLS, TCP, UDP, Sigcomp, IPV4, IPV6, AKA-V1, AKA-V2, SHA1, AES, DES, Deflate, PRS, HTTP
Media: Audio No-REF, Audio Full-Ref , Video No-Ref, Video Full-Ref, Audio Delay, Lip-synchronization, RTCP Analyzer
Standards: 3GPP Rel 10, GSMA, IMTC, ITU-T , IETF , OMA2, RCS-e, RCS-5.0
Interoperability: IR.92, IR.94, IMS Test Cases, RCS Test Cases, Network Impairment Test Cases, Audio & Codec Test Cases – including EVS.

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