VoIP Service

What is VOIP


VOIP is an acronym for Voice Over Internet Protocol, or in more common terms phone service over the Internet.

If you have a reasonable quality Internet connection you can get phone service delivered through your Internet connection instead of from your local phone company. Some people use VOIP in addition to their traditional phone service, since VOIP service providers usually offer lower rates than traditional phone companies, but sometimes doesn’t offer 911 service, phone directory listings, 411 service, or other common phone services. While many VoIP providers offer these services, consistent industry-wide means of offering these are still developing.

How does VOIP work?

A way is required to turn analog phone signals into digital signals that can be sent over the Internet. This function can either be included into the phone itself (See: VOIP Phones) or in a separate box like an ATA .

VOIP Using an ATA

Ordinary Phone —- ATA —- Ethernet —- Router —- Internet —- VOIP Service Provider

VOIP using an IP Phone

IP Phone —– Ethernet —– Router —- Internet —- VOIP Service Provider

VOIP connecting directly

It is also possible to bypass a VOIP Service Provider and directly connect to another VOIP user. However, if the VOIP devices are behind NAT routers, there may be problems with this approach. IP Phone —– Ethernet —– Router —- Internet —- Router —- Ethernet —- IP Phone

Applications using VOIP

Traditional telephony applications, such as outbound call center applications and inbound IVR applications, normally can be run on VOIP.

Why use VOIP?

There are two major reasons to use VOIP

  • Lower Cost
  • Increased functionality


Lower Cost

In general phone service via VOIP costs less than equivalent service from traditional sources. This is largely a function of traditional phone services either being monopolies or government entities. There are also some cost savings due to using a single network to carry voice and data. This is especially true when users have existing under-utilized network capacity that they can use for VOIP without any additional costs.

Increased Functionality

VOIP makes easy some things that are difficult to impossible with traditional phone networks.

  • Incoming phone calls are automatically routed to your VOIP phone where ever you plug it into the network. Take your VOIP phone with you on a trip, and anywhere you connect it to the Internet, you can receive your incoming calls.
  • Call center agents using VOIP phones can easily work from anywhere with a good Internet connection.
Speedinet South Africa Cheapest Call Rate ProviderSpeedinet South Africa Cheapest Call Rate Provider

Online Web Portal Access

Access Real-time Call Detail Records (CDR’s) dialed, received and missed call in CSV format Users can set their account preferences and log Support requests.

Total Control

With Speedinet VoIP you have Total Control  over your bill and access

Target Audience

  Contact Centers and Business process outsourcers (BPOs), leading hotel and resort properties, small and mid-sized businesses (SMBs) plus large enterprises and multinational corporations.


SPEEDINET is about choice:

  • We are an affordable and reliable alternative to existing operators.
  • We are helpful and in touch with your requirements.
  • We are a genuine partner to you, delivering your needs efficiently and effectively.
  • We have a vested interest in providing you with the best possible service!

Speedinet Voip Call Rates:

VoIP is future Need

VoIP Service is best for Residence and business

VoIP telephony system is quick to deploy

Focus on your business, not on your phones. Our Cloud PBX is easy to use and quick to implement. The entireinstallation process can be completed in as little as two or three days. Speedinet Cloud (Hosted) PBX is a service, offering the functionality of a PBX without the need of installing a PBX at the customer’s location. Only VoIP phones need to be installed to deploy a Hosted PBX. A big advantage is that transitioning to our Hosted PBX system will not cause downtime, and you will be able tokeep all of your existing phone numbers. The change over is seamless and can be installed by the customer themselves. Typically, the corporate network administrator performs the installation. Speedinet can provide on-site support upon request of all pre-configured material. VoIP has never been as efficient and easy as it is with Speedinet Cloud PBX.

South African Local NumbersSouth African Local Numbers


What is the advantage of having a Direct Inward Dialing Number (DID or DDI) ?

Speedinet is a DID (Direct Inward Dialing) VoIP provider and can offer you a block of telephone numbers to call into a company’s private branch exchange (PBX) system. This would allow several ongoing calls at a time; additional inbound calls would get a busy signal until one of the calls completed or be able to leave a voice mail message. If you are ready to use VoIP but want to retain your current inbound number, simply port your number to Speedinet and reap the benefits. The benefit of having a DID is that any person can call the extension, or phone number, in order to connect to the recipient without having to go through a switchboard or operator and without the company having to purchase bulk phone lines. For example, a company might rent 100 phone numbers from the phone company that could be called over eight physical telephone lines (these are called “trunk lines”). This would allow up to eight ongoing calls at a time; additional inbound calls would get a busy signal until one of the calls completed or be able to leave a voice mail message. The PBX automatically switches a call for a given phone number to the appropriate workstation in the company. A PBX switchboard operator is not involved. A DID system can be used for fax and voice mail as well as for live voice connections.

Features and Benefits

  • Route calls to any VoIP destination or divert calls to any phone number worldwide
  • No incoming call charges for receiving calls using VoIP. Call charges apply for diverts depending on the divert destination
  • Receive calls from anywhere in the world, callers will not be charged any special charges
  • Convert any of your numbers into a Fax to Email number using our online control panel.
  • Compatible with SIP
  • What is required to have an active DID number

List of prefixes that we can provide – 010 / 012 / 013 / 014 / 015 / 016 / 017 / 018 / 021 / 022 / 023 / 027 / 028 / 031 / 032 / 033 / 034 / 035 / 036 / 039 / 041 / 042 / 043 / 044 / 045 / 047 / 051 / 053 / 054 / 056 / 057 / 058 / 0800 / 0860 / 087 In order to have an active DID, all that is required is to have a working transfer line to which calls can be forwarded. Speedinet offer IVR technology to route calls to a user’s phone line. That line could be a land line, cellphone, or digital line.

How are DID numbers used with PBX systems?

In many cases, direct inward dialing (DID) is used in conjunction with a company’s private branch exchange (PBX) systems. Speedinet allocate one or more trunk lines to your PBX, allocate a range of telephone numbers to this line, and forward all calls to such numbers via the trunk. When calls arrive at the PBX system, the dialed destination number is transmitted so that the PBX can route the call to the desired extension. As a consequence of this call forwarding, a company can offer individual phone numbers for each employee or work station without requiring a physical telephone line for each number.

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