What is VoIP?

VoIP stands for Voice over Internet Protocol (Internet Protocol is referred to as IP).

Internet Protocol is the communication method used for all internet traffic, the computer you’re reading this on currently has an IP ‘address’ for instance to enable it to connect and communicate on the internet.  Packets of data are sent to and from computers when communicating on the internet, talking to each other via their unique IP addresses.

VoIP uses this same communication method to send packets of voice information when you make a call.  Because you are already on the internet, probably paying a monthly broadband charge for internet use, you can take advantage of the Switch Telecom VoIP Services to make calls at a reduced cost.

What do I need to start using VoIP?

  • A Reliable Broadband Internet connection is required at each of the sites from which the service will be utilised:
  • A VoIP phone (desktop/cordless) or VoIP Adapter.


Can I use my existing analogue phone?

Yes you can but you will need an ATA adapter to convert an analogue phone or a gateway to convert a PBX.

Does Switch Telecom provide Internet connectivity?

We do not offer Internet Connectivity but can advise you on a connectivity solution that best suits your needs. Contact us if you want to find out more.

Can I use a Softphone?

The Switch Telecom VoIP Services are compatible with softphones/phones that support G.729 Codec.
Please feel free to contact us on 087 550 0000 to discuss recommended softphones.

What is a Codec?

A codec is a program, most of the time installed as a software on a server or embedded within a piece of hardware, that is used to convert voice (in the case of VoIP) signals into digital data to be transmitted over the Internet or any network during a VoIP call.

Do I have to use Switch Telecom supplied equipment?

No, but we would recommend contacting us to discuss which equipment works best.

Can I keep my existing number?

Mobile Number Portability has been available between the mobile networks for a few years already and Geographic Number Portability is also available between selected Fixed Line networks. Switch Telecom prides itself in being a market leader and has been one of the first operators to offer this.

Which numbers can I port?

A geographic telephone number is a number that starts with 01, 02, 03, 04 or 05. We presently allow for the porting of geographic numbers from Telkom to Switch Telecom and vice versa.

Numbers starting with 080, 086 or 087 cannot be ported.

Porting to/from Neotel, ECN and Vox Telecom may also be requested, provided the numbers are geographic, not 087.

What Numbers does Switch Telecom Offer?

Switch Telecom can offer you a new number with your Service or can port your existing number.
Switch Telecom offers numbers in the following ranges:

Non-geographic number ranges:

087 550 xxxx – National
086 001 74xx – Inbound National
086 101 74xx – Inbound National
086 700 1xxx – Inbound/Fax-to-Email

Geographic numbers ranges:

010 500 xxxx – Johannesburg
011 568 xxxx – Johannesburg
012 004 xxxx – Pretoria
013 004 xxxx – Nelspruit / Witbank / Middelburg
014 004 xxxx – Rustenburg / Nylstroom
015 004 xxxx – Polokwane / Potgietersrus / Louis Trichardt
016 004 xxxx – Vereeniging / Meyerton
017 004 0xxx – Ermelo/ Amersfoort/ Bethal/ Surrounds
018 004 0xxx – Klerksdorp / Sannieshof / Surrounds
021 300 xxxx – Cape Town
022 125 0xxx – Malmesbury / Moorreesburg / Surrounds
023 004 xxxx – Worcester / Beaufort West
028 125 0xxx – Bredasdorp / Hermanus / Surrounds
031 100 xxxx – Durban
032 004 0xxx – Stanger / Tongaat / Ballito / Surrounds
033 004 xxxx – Pietermaritzburg
035 004 0xxx – Empangeni/ Eshowe / Surrounds
039 004 0xxx – Hibberdene / Kokstad / Surrounds
041 004 xxxx – Port Elizabeth
042 004 xxxx – Uitenhage / Somerset East
043 004 xxxx – East London
044 004 xxxx – George
049 125 0xxx – Graaff-Reinet / Middelburg / Surrounds
051 004 xxxx – Bloemfontein
053 004 xxxx – Kimberley
057 004 0xxx – Welkom / Theunissen / Surrounds

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