Call Relay is a wise way of VoIP switched connection amongst various IP networks. Call Relay makes sure that the organization of the single central VoIP portal between IP networks, thus, makes sure that achieving VoIP connections through the segments of IP networks will not be an issue.
SIP is the latest technology allowing voice call to be made over the internet. VoiceFlex uses SIP to provide low cost, ISDN replacement lines that provides the best possible call quality, inexpensively, sometimes at no cost, with the flexibility that come
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