Clearstream offer a range of Voice over IP, SIP and Unified Communication Services.

With large-scale multi-site VoIP experience going back to 2005 we have the experience to understand the challenges of IP Telephony and new Unified Communication technology.

Our core services are Microsoft OCS deployment and design, SIP Trunking and Hosted VoIP.

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SIP Trunks

Every telephone system has to be connected to the main carrier networks to make and receive telephone calls. Traditionally, this has been acheived using ISDN or analogue services from BT or a similar telecoms carrier. SIP Trunks are the new ISDN connections for Internet Telephony and VoIP systems.

<Click here for more information on SIP Trunks>

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Microsoft OCS Services

As  Microsoft Unified Messaging Partner, Clearstream offer:

• Network and IP Telephony Design Services
• Server Build and Design Architecture
• Implementation Skills and Project Management
• Support and Management

<Click here for more information on Microsoft OCS Services>

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Hosted Telephony

A low cost, quick install telephony solution connecting IP handsets to your data network using our centrally hosted IP PABX Technology.

<Click here for more information on Hosted Telephony>