Aastra Telecom has introduced VoiceFlex SIP Trunks from Frontier Systems, to support a cost-effective VoIP solution for businesses. Incorporating the service within its Ascotel PBX system, Aastra is now able to provide a competitive alternative to ISDN lines. With businesses now demanding low cost calls and increased flexibility in a phone system, SIP trunking is able to meet these needs and more. VoiceFlex's SIP-based IP trunking uses voice over broadband to lower the cost of line rental and offer free calls to other SIP trunk users. Phone numbers can also be ported to any IP address meaning numbers can be assigned and retained regardless of office location.
www.voiceflex.co.uk