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HCL Technologies

Unified Communications

HCL has more than 15 years of experience in unified communications engineering, and has a partnership with two of the top three unified communications providers. We provide end-to-end solutions for various devices including, desktop, mobile, VoIP devices, tablets, PBX / soft switches, enterprise routers, and switches. The areas of application include call control, IVR, CTI apps, voicemail, IM / Presence, Web conferencing, cloud / virtualization, contact center, CEBP, NMS / OSS, and fixed mobile convergence.

HCL has classified its expertise in unified communications as follows:


  • Sustenance and enhancement of TDM PBXs, IP-PBXs, IPphones/digital phones
  • C2I of VoIP emergency phone and low cost phones
  • Auto attendant application server development using Voice XML
  • Interoperability testing
  • Voice mail system / IVR systems


  • Scalable Video Coding (SVC)
  • Audio/Web conference solution development
  • H323 video conference solution development
  • H264 HD video collaboration testing

Cloud / Virtualization

  • Performance characterization of virtualized applications
  • Communication as a Service
  • Network provisioning
  • Test automation


  • SIP DECT Integration
  • IMS/TTCN3 conformance
  • SMS based mass notification
  • Mobile extension
  • Audio /Video SIP client on Android
  • UC client framework
  • Mobile browser access to enterprise applications


  • MS Lync / OCS integration plug-Ins
  • Unified messaging
  • SIMPLE/XMPP protocols
  • IM federation
  • Direct SIP integration with MS Lync
  • Integration with social networking sites

HCL's telecom and networking engineering services' skill sets are as follows:

  • Communication platforms: TDM PBX, IP PBX, soft switches, and asterisk call manager.
  • Operating systems: Linux, Windows, uClinux, Proprietary Linux, VxWorks, and Android
  • Chipsets/DSP: Texas Instruments, Analog Devices, Sitel, PowerPC, and Motorola 68K
  • Devices: Analog phones, digital phones, SIP Phones, H.323 Phones,  soft phones, and Android smart phones
  • Applications: Voice mail, JBOSS application server, CTI applications, Clearcase, Tornado, and automatic call generator
  • Protocols / standards: SIP, H.323, proprietary protocols, QSIG, DPNSS, TAPI, CSTA, IPv4, IPv6, DECT, H.263, and H.264.

What We’ve Done For Others

  • For a European global telecom OEM, HCL was involved in the development and testing of a 3GPP GUP compliant user profile provisioning system for an IMS environment.
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We will treat any information you submit with us as confidential. Please read our privacy statement for additional information.