• Web DesignThink of your website as an inexpensive, cost effective marketing tool that takes your products and/or services into every household across the globe
  • IT ConsultingLet us worry about your critical DATA & application
  • VOIP / PABX SystemsThe monetary savings to the consumer from switching to VoIP technology can be enormous.
  • VirtualisationImprove the efficiency and availability of IT resources and applications through virtualization.
jQuery Banner Slideshow by WOWSlider.com v4.9
VOIP and PABX Systems
Internet telephony refers to communications services—Voice, fax, SMS, and/or voice-messaging applications—that are transported via the Internet, rather than the public switched telephone network (PSTN). 

(Voice over IP, VoIP) is a family of technologies, methodologies, communication protocols, and transmission techniques for the delivery of voice communications and multimedia sessions over Internet Protocol (IP) networks, such as the Internet. Other terms frequently encountered and often used synonymously with VoIP are IP telephony, Internet telephony, voice over broadband (VoBB), broadband telephony, and broadband phone. 

The steps involved in originating a VoIP telephone call are signaling and media channel setup, digitization of the analog voice signal, encoding, packetization, and transmission as Internet Protocol (IP) packets over a packet-switched network.

On the receiving side, similar steps (usually in the reverse order) such as reception of the IP packets, decoding of the packets and digital-to-analog conversion reproduce the original voice stream.Even though IP Telephony and VoIP are terms that are used interchangeably, they are actually different; IP telephony has to do with digital telephony systems that use IP protocols for voice communication while VoIP is actually a subset of IP Telephony. VoIP is a technology used by IP telephony as a means of transporting phone calls. 

VoIP systems employ session control protocols to control the set-up and tear-down of calls as well as audio codecs which encode speech allowing transmission over an IP network as digital audio via an audio stream. The codec used is varied between different implementations of VoIP (and often a range of codecs are used); some implementations rely on narrowband and compressed speech, while others support high fidelity stereo codecs. 

There are three types of VoIP tools that are commonly used; IP Phones, Software VoIP and Mobile and Integrated VoIP. The IP Phones are the most institutionally established but still the least obvious of the VoIP tools. The use of software VoIP has increased during the global recession of 2008-2010, as many persons, looking for ways to cut costs have turned to these tools for free or inexpensive calling or video conferencing applications. 

Software VoIP can be further broken down into three classes or subcategories; Web Calling, Voice and Video Instant Messaging and Web Conferencing. Mobile and Integrated VoIP is just another example of the adaptability of VoIP. VoIP is available on many smartphones and internet devices so even the users of portable devices that are not phones can still make calls or send SMS text messages over 3G or WIFI. 

For International calling, the monetary savings to the consumer from switching to VoIP technology can be enormous.


Cheap websites

Affordable it support



Call CentreOur Commitment

Based in Pietermaritzburg, KZN, Kalmia offers quality skills of the highest calibre, coupled with excellent service for your computer network environment.

Read More 

IP PhonesAbout us

Kalmia is a technology solutions provider with a focussed, creative and open-minded approach to consulting, services and general support for information and communication technologies

Read More 



Contact Us


Tel : +27 76 908 0056

Fax: +27 86 273 8332


This email address is being protected from spambots. You need JavaScript enabled to view it.

Send us a message