Selective Call Acceptance & Rejection

Selective Call Acceptance & Rejection

The selective call acceptance allows controlling incoming calls by making a list of telephone numbers which you are ready to accept. But incoming calls from subscribers that are not listed are directed to the answering machine by which the caller is informed that you do not accept calls at the moment.

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Detailed description of SIP protocol

Detailed description of SIP protocolSIP protocol was made within IETF (Internet Engineering Task Force) – organization occupied with establishing Internet standards and general standards concerning TCP/IP protocols.

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United States VocalNet, Inc.

VocalNet is deploying leading-edge IP voice and managed IT services to small and mid-size businesses. Our voice solution offers enterprise voice features that go beyond traditional PBXs including unified messaging, call queuing, voicemail, auto attendant,

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