Failover
An automatic switching onto the standby mode or alternative server in case there is an error in the active server, program, system components etc.
Is often met in business practice, during calls to organizations at the moment, when the call is transferred to another number or is set on hold, one hears a music in the telephone dynamics.
VoiceFlex
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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