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1. Click Connection Settings. 2. Confirm the listed modem and location. 3. Click Next. 4. From the Dialing Options screen, check the box labeled, “I have to dial this number to turn off call waiting".
513 Message Too Large The request message length is longer than the server can process. [1]: §21.5.7 555 Push Notification Service Not Supported The server does not support the push notification service identified in a 'pn-provider' SIP URI parameter [22]: §14.2.1 580 Precondition Failure
Skype for Business Server (formerly Microsoft Office Communications Server and Microsoft Lync Server) is real-time communications server software that provides the infrastructure for enterprise instant messaging, presence, VoIP, ad hoc and structured conferences (audio, video and web conferencing) and PSTN connectivity through a third-party gateway or SIP trunk. [3]
Unified Communications (UC) is a marketing buzzword describing the integration of real-time, enterprise, communication services such as instant messaging (chat), presence information, voice (including IP telephony), mobility features (including extension mobility and single number reach), audio, web & video conferencing, fixed-mobile ...
Conference calls can be designed so that the calling party calls the other participants and adds them to the call; however, participants are usually able to call into the conference call themselves by dialing a telephone number that connects to a "conference bridge," which is a specialized type of equipment that links telephone lines.
H.323 is a system specification that describes the use of several ITU-T and IETF protocols. The protocols that comprise the core of almost any H.323 system are: [8] H.225.0 Registration, Admission and Status (RAS), which is used between an H.323 endpoint and a Gatekeeper to provide address resolution and admission control services.
Microsoft NetMeeting is a discontinued VoIP and multi-point videoconferencing program offered by Microsoft.NetMeeting allows multiple clients to host and join a call that includes video and audio, text chat, application and desktop sharing, and file sharing. [1]
Operator assistance refers to service provided by a telephone operator to the calling party of a telephone call.This can include telephone calls made from pay phones, calls placed station-to-station, person-to-person, or collect, third-number calls, calls billed to credit cards, and certain international calls which cannot be dialed directly.