VOIP

Voice over Internet Protocol (Voice over IP, VoIP and IP telephony) is a methodology and group of technologies for the delivery of voice communications and multimedia sessions over Internet Protocol (IP) networks, such as the Internet. The terms Internet telephony, broadband telephony, and broadband phone service specifically refer to the provisioning of communications services (voice, fax, SMS, voice-messaging) over the public Internet, rather than via the public switched telephone network (PSTN).

The steps and principles involved in originating VoIP telephone calls are similar to traditional digital telephony and involve signaling, channel setup, digitization of the analog voice signals, and encoding. Instead of being transmitted over a circuit-switched network; however, the digital information is packetized, and transmission occurs as IP packets over a packet-switched network. They transport audio streams using special media delivery protocols that encode audio and video with audio codecs, and video codecs. Various codecs exist that optimize the media stream based on application requirements and network bandwidth; some implementations rely on narrowband and compressed speech, while others support high fidelity stereo codecs. Some popular codecs include μ-law and a-law versions of G.711, G.722, a popular open source voice codec known as iLBC, a codec that only uses 8 kbit/s each way called G.729, and many others.

Filters
58 results - showing 21 - 30  
1 2 3 4 5 6  
Ordering 
 
megapath.png
MegaPath is a facilities based carrier that offers a wide selection of broadband connectivity, specializing in multi-location networks, MPLS, Virtual Private Networks (VPN), Voice over IP (VoIP), Voice over...
 
0.0 (0)
:
 
iplum.png
iPlum brings privacy with 2nd fully featured business phone line right to your smartphone. The app provides you with powerful business communication features, allowing you to keep your business...
 
0.0 (0)
:
 
fluentstream-technlogoies.png
FluentStream Technologies is a phone and VoIP system provider that offers smart business phone solutions for almost every industry. FluentStream offers services to call centers, local governments, fire departments,...
 
0.0 (0)
:
 
dial-gate-voip-softswitch.png
Dial Gate is an innovative web-based VoIP softswitch and billing server for the IP and PSTN networks. Once installed on a server, it functions as a VoIP softswitch by...
 
0.0 (0)
:
 
dialer360.png
If you are a Call center and are having issues to find a perfect British or American accent while receiving international calls then the best solution is none other...
 
0.0 (0)
:
 
cloud-pbx-platform.png
In response to a strong telephony market trend moving towards software, open and standardized SIP based cloud services, Centile has developed ISTRA™, a Unified Communications platform that provides fixed-line,...
 
0.0 (0)
:
 
circuit.png
VOIP.COM is a next generation telephone company offering Cloud based PBX services to medium to large enterprise customers in North America. Sip Trunk and Wholesale Services are also...
 
0.0 (0)
:
 
choiceview-live-agent.png
RadishSystems introduces ChoiceView™ a new communications approach that allows businesses to share visual information in real-time during smartphone conversations. With ChoiceView, when your customers, employees, or...
 
0.0 (0)
:
 
cebod-telecom.png
A Business Phone Service designed for medium to large businesses. Cebod Telecom leverages VoIP technology and provides features like Auto Attendant, Multi level IVR, Call forwarding, Call routing, Call...
 
0.0 (0)
:
 
callision-contact-center-as-a-service.png
Callision is the world's first carrier-independent cloud business phone system, and the first freemium enterprise-grade Contact Center as a Service (CCaaS). Callision allows its customers to use their preferred...
 
0.0 (0)
:
 
58 results - showing 21 - 30  
1 2 3 4 5 6  
 

Login Form

Advanced Filtering

Categories

User Rating

Pricing