NumberGroup provides business quality VoIP services to wholesale operators and SIP Trunk customers worldwide. We have over 1,000,000 UK and Internaiton telephone numbers are are a license UK operator with direct PSTN connectivity.
We are the UK’s only supplier of free Telephone Numbers, Call Solutions and SIP Trunking. We provide Freephone 0800 numbers and Geographic 01/02 local area codes to over 4000 SME businesses and Wholesale Channel Partners around the world, either through wholesale Network Access or in conjunction with our innovative array of inbound call handling and IVR solutions.
Our SIP Trunking service provides high availability network access with fully redundant IP interconnects and business quality jitter free speech, supporting a range of wide and narrow band codecs and NAT Traversal.
Virtual Office is a powerful suite of advanced calling features for the SME, helping you manage your inbound telephone enquiries and reduce potential loss of business through unavailability at peak times. Our solution provides you with Virtual Receptionist, Missed Call Alerts, Call Recording, Fax to Email, IVR and Voicemail, all managed through our Web 2.0 customer portal. Virtual Office services can be delivered to regular PSTN phones and mobiles as well as via SIP Trunks.
Hanoi Telecom is one of the earliest licensed VoIP providers in Vietnam and has best increased VoIP traffic. We have interconnections to all fixed and mobile network operators in Vietnam via a stable technical infrastructure. In addition, we build a flexi
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