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Voice over IP (VoIP)
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VoIP figureVoice over IP (VoIP) is a technology for transmitting voice as separate packets over a data network, such as the Internet Protocol (IP). This technology is also called Telephony over IP (ToIP) because it is able to transport over the internet all the legacy ISDN services, like telephony, facsimile, voice-messaging and video calls.

Because of the bandwidth efficiency and low costs provided by VoIP technology, businesses are migrating from traditional telephone systems to VoIP systems to reduce their monthly phone costs.

Also the infrastructure costs are significantly reduced, as voice and data communications use the same LAN/WAN network.

In addition, the prices of extensions are lower than for traditional PBX systems. VoIP switches run on commodity hardware, such as PCs or Linux systems. Rather than closed architectures, these devices rely on standard interfaces.

The solutions aimed at businesses have evolved into "unified communications" services that treat all communications—phone calls, faxes, voice mail, e-mail, Web conferences and more—as discrete units that can all be delivered via any means and to any handset, including cellular phones.

Dual-mode cellular phones enable users to continue their conversations as they move between an outside cellular service and an internal Wi-Fi network, so that it is no longer necessary to carry both a desktop phone and a cellular phone. Maintenance becomes simpler as there are fewer devices to oversee.

The availability of specialized Internet protocols allow the introduction of new services: Presence, for example. Another possibility is codec negotiation, for bandwidth reduction.

BAGGIÒ offers complete turn-key solutions:

· Hardware (Windows or Linux computers according to the solution)

· Software packages (basic VoIP, supplementary services, administrative tools)

· Stand-alone IP-PBX or wide area IP-PBX network

· In house server versus hosted service

· Protocol choice: SIP versus H.323

· Integration with the company’s data network

· Signal Quality versus Bandwidth

· Security when traversing the Internet

· Interfacing the PSTN (Public Switched Telephone Network): Media Gateways

· PSTN signaling: ISDN Q.931 versus ISUP Q.767

· Certification of the connection to the Incumbent Operator

· Least Cost Routing for outbound calls

· Redundancy: protection against single failures (hardware components, power)

· Signal cabling and Power wiring

· IP phones, Soft-phones, Dual-mode mobile phones (GSM / WiFi)

· Compatibility with traditional analog telephone sets

· Integration with the DECT subsystem

Typical supplementary services are:

· Call forwarding, call transfer, call hold

· Audio conference

· Integration with Microsoft® Outlook® or Lotus Notes contact list

· Incoming call routing based on caller ID, called extension, time/date/day and the called party's Outlook/Notes Calendar

· Incoming faxes converted into email messages

· Fixed Mobile Convergence: the mobile phone can operate as an internal extension of the enterprise IP-PBX

· Possibility of recording the call contents

· Integrated Voice mail with Message Waiting Indicator

· Call monitoring/silent intrusion by the supervisor

· Automatic Call Distribution (ACD)

· Integration with the company database and Customer Relationship Management (CRM) system

· Click to Call


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