ISDN Voice Services

 Consolidate and simplify your voice services while reducing costs. A single network and supplier means one, reduced, flat fee, with extra savings to be made by centralising the telephony network through consolidation of Local Area Codes. Using the ISDN Service in combination with Colt Business Internet Access can further decrease your costs and once you are…

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SIP Trunking Services

 SIP Trunking simplifies your business telephony and saves you money. Pan-European businesses who want to optimize their voice infrastructure and better manage costs should consider Colt as a provider for SIP Trunking services. With SIP Trunking solutions you simplify all your telecommunications into a single IP network. You keep all the features of traditional…

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