SIP refers to “Session Initiation Protocol.” Trunking refers a combination of data and voice connections straight into one single line.
Having SIP there is no need of employing at the same time a telephone network as well as a data network. Making use of SIP one can employ internet to transfer voice and data.
SIP trunking uses the onsite PBX – the phone switching system that already is available to route the calls. But it really provides a significant difference in price that comes from the merging of the connections and the increased efficiency that is liable to bring.
SIP Trunking offers you the very best of both worlds: the much better performance and cost-efficiency of VoIP phone plans and the ability to maintain your current phone system.
Numerous providers supply SIP services. Providers like Nextiva and Vocalocity to mention a few, can modify their plans to supply the finest SIP services.
If I have to give a review of the best sip providers I will defiantly mention the following SIP providers:
8X8 Inc
Vocalocity
Nextiva
Apptix
Jive
A number of the benefits of SIP:
Increased reliability, supported by the SIP Trunk Suppliers
Local calling
Long distance calling
DID calling for every extension
Caller ID
E911…and more…
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