Voice Over IP Telephony
Voice over IP (VoIP) defines a way to carry voice calls over an IP network including the digitisation and packetisation of the voice streams. IP Telephony utilises the VoIP standards to create a telephony system where higher level features such as advanced call routing, voice mail, contact centres, etc., can be utilised.
Session Initiation Protocol (SIP) is a peer-to-peer, multimedia signalling protocol developed in the IETF. SIP is ASCII-based, resembling HTTP, and reuses existing IP protocols (DNS, SDP, etc.) to provide media setup and teardown. Since its first publication in 1999, SIP has generated a high level of interest in the VoIP industry, and many people believe that SIP will become the de facto standard protocol for future voice networks.
Our Experience
Ultima's consultants maintain the highest Cisco accreditations - including CCIE - ensuring that our customers receive the highest level of expertise. By utilising our range of highly skilled consultants in Cisco, Microsoft, Citrix and VMware, Ultima can facilitate smooth migration from the existing systems to a complete unified messaging suite.
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