Frequently Asked Questions

  • What is web hosting?

    Web hosting allows you to publish your website. You will need a web hosting service to host your website so that people can view it online. If you’ve never used web hosting before, our support team is available to help you get started.

  • How do I transfer files to my website?

    Files must be transferred to the Web server via File Transport Protocol (FTP) or your account's Web-based File Manager.

  • Will I have unlimited access to update and make changes to my pages?

    You have unlimited access via FTP and the Web-based File Manager 24 hours per day, 7 days a week. As such, you can create and maintain your Web pages on your own computer and upload files to your website at your leisure.

  • What is the difference between Linux and Windows web hosting?

    Linux and Windows are two different operating systems. The operating system that you use on your computer should not determine your choice. For example, if your computer is run by Windows Microsoft, Linux hosting will work just as well as Windows hosting. Deciding between Linux and Windows web hosting depends on your style of web building. If you plan to use PHP, MySQL or Perl together with a range of software programs, Linux is the one for you. Linux web hosting is also suitable for ‘brochure-ware’ sites that offer interaction via inquiry forms, online purchasing, and other e-commerce functions. However, if you are looking to incorporate searchable databases and Windows-specific applications such as ASP then choose Windows web hosting.

    For YahClick technical questions and answers, go to the YahClick section on this page.

  • What is VSAT/BettaSat?

    BettaSat is a reliable, uncapped satellite internet service. Designed for home and small office, as well as larger corporates. BettaSat delivers an affordable Ku-band satellite service anywhere in Southern Africa. Perfect for remote and under-serviced areas, BettaSat offers high-speed internet access at a fixed monthly cost. With the advanced iDirect Evolution Satellite Teleport co-located at Vox Telecom’s head office in Johannesburg, you’ll have access to a low latency satellite service that is affordable, wide-reaching, quick to install and highly reliable.

  • Can VSAT/BettaSat accommodate a Virtual Private Networks (VPN)?

    Yes. In the current communications environment, it is difficult to rely on fixed lines at every branch location. With cables being stolen and the cost of obtaining a connection in a remote location satellite becomes a cost effective solution. Through our Satellite networks, our clients can develop their own secure Wide Area Networks (WAN) using secure link encryption such as AES or 3DES, and the latest Cisco technology.

    There are applications for which latency is critical. This is the case where central database applications are being used. An example of this would be where a central stock system is being run on an Oracle database. All branches have to connect to the head office database to query and update stock levels. A typical star network would mean a connection from the branch to the hub and then from the hub to head office. This means there is a double satellite hop resulting in a latency of 1200-1300 milliseconds. Database applications struggle to perform efficiently with such long delays. Logical Wireless has a Point to Point connectivity solution where you bypass the hub and create a connection directly from the branch to head office. This results in one satellite hop, therefore substantially reducing latency.

  • Can I run Voice Over IP (VOIP) over VSAT/BettaSat?

    Yes. Vox Telecom can provide a VOIP handset with a VSAT installation or can set up a complete PBX solution to cater for multiple users and concurrent calls. This will allows telephone calls to anywhere in the world. The call costs of these calls are less expensive than local telecom operators and calls within our network are free. In order to make a voice call, there is a minimum guaranteed bandwidth of 20kbps up and down. It is essential to take this into account when selecting your bandwidth package. Please feel free to phone our sales team who can advise you on the bandwidth that will suit your requirements.

  • Can I do Video Conferencing over VSAT/BettaSat?

    Yes. Video conferencing to any remote site in Africa is possible. This allows businesses in South Africa to conduct a meeting through video technology to a remote site, without travel costs needing to be incurred.One will need to investigate bandwidth requirements for each Video solution as the quality of service is important.

  • Can Point-to-Point VSAT Connectivity be implemented?

    Yes. This allows one or more sites to connect directly to another, thus eliminating any third party teleport involvement. The sites are therefore linked directly to one another through one satellite hop, thus substantially, which greatly improves the transfer of data. This type of connectivity is especially efficient when creating a VPN and using time sensitive software applications, i.e. where latency is critical.

  • How do I test my speed?

    There are many speed test services available on the Internet. As only a small % of global internet users connect via satellite networks, 99.9% of these speed test services are tuned for terrestrial wired services such as ADSL - but give incorrect results when testing via a satellite-based service. The test methodologies used by these services are not 'compatible' with the TCP acceleration features built into all modern satellite based networks.

    For an accurate speed test, we have our own system that we know delivers accurate results. We can be sure of the speed test results when we deliver a file from "our side" of the customers' internet connection. This gives a true and accurate reading of the access network performance between the customer and our gateway at the satellite earth station in Europe.

    Once the 'traffic' enters the European Internet backbone, there are many factors beyond our control which can affect the speeds.

    The Yahclick service comes with a facility for testing download and uploads speeds. You can access this facility via the Yahclick end user portal - (https://eupgateway.yahclickonline.com)

    If you insist on using speedtest.net, first change your ‘Preferred Server’ to ‘Luxembourg (LU) – DATACENTER to test the performance of your Yahclick satellite link. If you do not, by default the test will be run against servers in South Africa delivering wrong results.

  • What is Fair Access Policy (FAP)

    To ensure that all YahClick High-Speed Internet Service customers have equitable access to the network, YahClick sets usage allowances on the amount of data a subscriber can download within stated time periods. These are usage allowances are specified in each service plan. If at any time a subscriber’s Usage Total is above the Usage Allowance, the YahClick system will temporarily limit the speed at which the subscriber can receive data over the network. Subscribers will still be able to use the Internet service but at a lower speed. The YahClick Fair Access Policy “FAP” is designed to impact the fewest customers who overuse the network while helping ensure the highest speeds for the vast majority of the users. In most networks, 5% of subscribers use 50% of the traffic. FAP policies are implemented by all to prevent abusive consumption of bandwidth by a minority of users.

    The best way to describe usage w.r.t FAP is using the ‘bucket’ analogy as depicted below. ‘water/data’ runs into the bucket at a constant rate of ‘A’ liters per hour = (0.1 X Monthly FAP Allowance) / 72. For example, on a service plan with a monthly allowance of 15GB per month, the bucket is filled up at a rate of (0.1 * 15000) / 72,= 1500 / 72 = 20.833 MBytes per hour.

    When ‘water/data’ is consumed, they flow out of the bucket at rate B (Mbytes consumptions per hour). So if you are emptying the bucket faster than the rate at which its being ‘filled’, then you will eventually have no more water/data left in the bucket and you will go into FAP. As you go into FAP, the size of the valve opening at B is reduced significantly, so as to ensure that the ‘water/data’ running out of the bucket can never exceed the rate at which ‘water/data’ is running into the bucket.

    Once the bucket reaches a level of 33% (24 hours with zero usage) the valve will be fully open so that the maximum data can be used. But when you are in FAP and you still keep on using the data which is flowing into the bucket, you may never go out of FAP because the bucket only fills up at the rate of A.

    When the bucket is full the data will still be flowing at a rate of A but it will overflow and the data usage will be lost. By managing your daytime downloads your can maintain your enjoyment of high-speed internet without experiencing any speed downgrades. Please note that YahClick also offers unlimited uploading so any photos or large files uploaded to the internet will not be counted as part of the data allowance.

    When you apply a FAP token the bucket will get filled up, so you can use as normal and thereafter the bucket gets filled up at a rate of A and the B is still equal to the actual usage.

  • What is the Download Freezone?

    The ‘Free Zone’ starts at 1:00 am and ends at 6:00 am. During this time, customers can enjoy downloading data at full speed, without it counting against the Download Allowance.

    This period has been provided for YahClick subscribers to schedule the downloading of automated updates or to download other large files. It's an incentive for users to rather schedule the downloading of large files to occur when the network is less busy and not place unnecessary load on the network during peak usage hours.

    Download speeds are not guaranteed during these hours and this period is subject to available satellite capacity. Yahsat have reserved the right to review the availability of the FreeZone or apply charges if there is network abuse during this time. We recommend that you schedule your automatic system updates to occur during the FreeZone. Use a download manager software application to automatically schedule large file downloads to occur during the FreeZone.

  • Can I use YahClick on a small network to serve multiple users?

    Yes, you can connect multiple computers and laptops to a single YahClick Internet connection. Home networking equipment may be required and is not included with your YahClick system.

    For network setup, support, and configuration, contact your network hardware manufacturer and/or operating system software developer (YahClick is not responsible for home network configuration or management).

    Please understand that all computers on this network will be sharing a single connection. Simultaneous use of high-bandwidth applications by multiple users may result in degradation of speed and is subject to the YahClick Fair Access Policy.

  • What is the difference between the Consumer and Business plan terminals

    Consumer service plans come with modem equipment that is designed for home users. In an average home, there will be 1 to 3 computers served by the Yahclick terminal.

    In a business environment, where there could be 20 simultaneous PCs served by a single modem, each operating a large number of user sessions, the business grade terminal is more powerful to handle this load. The business terminal also has two LAN ports.

  • Can YahClick’s NAPT firewall be configured that I am able to connect from the Internet to multiple devices/servers installed behind a YahClick link?

    No.The Yahclick NAPT firewall simply does a one-to-one NAT and does not take port ranges into consideration at all.To accomplish this, you need to install your own Firewall behind your YahClick terminal, accessible via a Static Public IP (an add-on available on the Business Service Plans) and do your port-based NAT translations there.

  • Can I change the IP of the modem or switch off the DHCP server

    No, you cannot turn off the DHCP server or change the IP or the IP range of the modem. The only way to get around this is to put a router between the YahClick modem and your network.

  • How many IP's do I get for LAN use?

    The satellite router’s LAN interface is configured with a /28 network. This subnet is automatically allocated at the time of provisioning the terminal. It is not possible to specify or determine what this subnet will be prior to terminal provisioning.

    When not deploying an additional firewall behind the Yahclick router, the maximum number of user devices that can be supported directly by the LAN interface is limited to 13. Customers with more devices on their LAN will need to install their own router/firewall with its WAN interface plugged into the Yahclick modem’s LAN interface.

  • Why do VPN connections over satellite perform so poorly?

    YahClick uses sophisticated acceleration techniques to enable high-speed performance over high-latency satellite links. Without this feature, TCP connections would only deliver a throughput of around 100Kbps – simply because of the round trip latencies involved over satellite connections.

    These acceleration technologies cannot accelerate traffic running inside tunnels. Tunnel payloads are commonly encrypted in any event, making it impossible to analyze the packet payload to attempt acceleration. When running VPN tunnels over Yahclick, customers need to implement their own TCP acceleration system. Otherwise, the performance will be limited to around 100Kbps – regardless of service plan being used

  • I already have a DSTV dish, do I still need a dish from YahClick?

    Yes. The YahClick system requires a unique dish in order to send and receive information via satellite. You cannot use your DSTV dish for YahClick high-speed Internet service.

  • Can I run a mail server behind my YahClick service?

    Yes, provided you apply for a static IP

  • If I have a consumer package can I get a Static IP?

    Yes. There is, however, an additional cost for a static IP on consumer service plans.

  • Does Yahclick support voice?

    To ensure voice quality, a network connection must support a feature called ‘Quality Of Service (QoS)’ that prioritizes voice traffic over normal data traffic (e.g. http, YouTube, torrents, etc.). Without this prioritization, the audio clarity of a voice call will deteriorate from time to time due to other traffic on the network. Activities such as opening a website, a YouTube video, or downloading a file, will cause audio interruptions with duration lasting from fractions of a second to minutes.

    If you need to run telephone calls, please ensure that you choose one of the YahClick ‘Voice’ enabled service plans. These are specifically designed to prioritize voice and supports between one and eight concurrent G.729 encoded voice calls – depending on the service plan selected.

    If your system negotiates G.711 on any call, your voice traffic exceeds the amount available on your service plan and quality will suffer.

    For the QoS to work correctly, your VoIP system must be configured as follows:

    1. Codec: G.729 (Products that only support G.711 can not be used)
    2. p-time: 40ms (highest priority) followed by 20ms (second priority).
    3. Must run your SIP trunk to Vox’ network.
    4. Use "yc.vphone.co.za : 5070" as registrar / sip-proxy.
    5. Do NOT enable STUN.

    Please note: that users who do not subscribe to a ‘Voice’ enabled service plan, will still be able to run voice over their YahClick links – however, the quality will vary between good and very poor (especially when concurrently downloading or uploading large files).

    Take note that should you exceed the maximum number of concurrent calls provided for by your service plan, all the voice calls (including the first one placed) will experience quality problems.

    IMPORTANT: Yahclick terminals accesses “yc.vphone.co.za” via dedicated leased capacity – not via the Internet. It is therefore not possible to reach yc.vphone.co.za via other Internet access services. SIP devices ‘talking’ to yc.vphone.co.za that have STUN enabled, will experience problems such as the inability to receive inbound calls, or one-way audio.

  • Does the voice calls use from my Daily Allowance Bandwidth?

    Yes, a G729 call will consume 22Mb/hour

  • Which Codec can be used when making Voice Calls?

    The voice packages only support G729 with a p-time of 40ms as highest priority, followed by a p-time of 20ms.

  • Can I use any VoIP provider on my YahClick Voice Package?

    No. The YahClick network only recognises and prioritizes VoIP traffic running over a Vox Telecom ‘yc.vphone.co.za’ SIP account. If you attempt to run voice to any other network, it may work, but at times the voice quality will deteriorate.

  • We have an IP PBX model XYZ. Will it work over Yahclick?

    Don’t Know. There are thousands of different makes and models of VoIP products on the market. It is impossible for Vox to test all of these. If you have confirmed it working against the Vox network running over say ADSL, then it will very likely also work when running over Yahclick – as long as it supports the requirements above for voice. (G.729 and 40ms/20ms p-time).

  • If I run voice over YahClick, can I port my current number to the Vox network?

    Yes. Note that currently only Geographic numbers (e.g. 011, 012, 021, 031, etc. ) can be ported to Vox. South African number porting regulations does not support the porting of non-geographic numbers (e.g. 087) between operators.

  • If I run into FAP will my dedicated voice channel have bad quality?

    No. You have dedicated bandwidth sufficient to cover the voice calls. However, if you are in FAP and you concurrently run heavy down or uploads, the quality may deteriorate from time to time.

  • Does YahClick use Local Only Bandwidth?

    No, The satellite connection terminates in Luxembourg so this will be international traffic. This is important for customers who may be using other forms of ‘local only’ internet services and need to connect from/to Yahclick sites.

  • Can bad weather affect the service?

    Yes. During periods of bad weather, the link can go down for short intervals because of signal attenuation caused by rain. The system automatically compensates for such signal attenuation, boosting its power levels to compensate - up to a certain point.

    Heavy rain, hail or snow occurring overhead customer terminals, or the earth station in Luxembourg, will cause signal attenuation and could result in short services outages.

  • Does the YahClick modem come with WiFi?

    No. YahClick service terminals are not Wi-Fi enabled. However, customers may connect their own wireless devices to enable Wi-Fi. However, Vox is not responsible for troubleshooting wireless routers or other devices that were not sold as part of the Yahclick solution.

  • If I order a Yahclick Static Public IP Address, is it routed down to the LAN side of the YahClick modem?

    No. The Static IP Address is configured as a one-to-one NAT on a centralized NAT Gateway router.

  • Can I share one service plan between multiple Terminals?

    No.

  • Are the devices on the LAN side of the satellite modem accessible from the Internet?

    If you ordered a Static IP Address, then at least one of the devices on your LAN will be accessible from the Internet, using the assigned Static IP Address. The remaining devices will not be accessible from the Internet. Even though these remaining devices are not accessible from the Internet, they are still accessible from all other Yahclick terminals on the Yahsat network by connecting directly to their statically assigned Private IP Addresses. For security reasons – you must keep this in mind and keep your devices secure. Install a firewall between your LAN devices and the satellite modem.

  • Can I use Remote Desktop?

    Yes. There is a “Choose your connection speed to optimize performance on the Experience tab under Options” in Remote Desktop Connection. When connecting to the remote computer, set the connection speed to Satellite (2Mbps – 16 Mbps with high latency).

    If you forget to use this setting, you may find your connection randomly dropping, or you are not able to establish the connection at all.

    To connect from the internet to a PC installed behind a YahClick link using Remote Desktop, you will need to connect to a Static IP which NATs through to that PC. So you will need to order a Static IP.

  • What SMTP server should I use?

    Send your mail using server: smtp.voxtelecom.co.za. Please note that SMTP mail to all other servers is blocked.

  • Can I download torrents?

    Yes. However, keep in mind that downloading can consume a lot of your bandwidth and will also eat into your FAP allocation. It is also likely to slow down other activities such as normal browsing. We recommend that you schedule your downloading to occur during the “Free-Zone” between 1 AM and 6 AM.

  • What factors influence Yahclick internet speed?

    When you connect to the Internet using YahClick, the upload and download speeds you experience will vary based on a variety of factors including the configuration of your computer, the number of concurrent users, network or Internet congestion, the size of the websites you are accessing, and many other factors.

    Yahclick does not deliver a dedicated unshared pipe for each customer to the internet. Just like ADSL, the speeds indicated on Yahclick packages are the maximum "Up-To" speeds. During periods of very heavy concurrent customer demand, the speed experienced by a specific customer will decrease.

    Speeds may also be affected if there is a major event and all users are trying to access the same content at the same time.

    Yahsat's capacity planning rules are such that the average speeds customers experience during the busy hours should not fall below 50% of the up-to-speed. But still, this is no guarantee that it never will. What about the satellite latency? The satellite technology used compensates for the high satellite latency between the customer terminal and the earth station, so it does not hamper TCP throughput. Customers need to take into account that Yahclick is delivered via an Earth-Station located in Europe. So its just as if the customer happens to be located in Europe.

    Generally, when surfing South African sites out of Europe, they perform 'slower' than when surfing the same sites out of South Africa. This is purely due to the latency over fibre between Europe and South Africa. A single TCP session (e.g. ftp download) between a South African site and Europe, will have speeds of up to 1.2 - 1.5Mbps – true even over a Gigabit WAN connection – purely because of the 200ms or so round trip latency over fiber between Europe and South Africa and limitations in the TCP protocol. Of course, by running 5 concurrent downloads from the same South African site, the Yahclick link will be running at 5 X 1.2 = 6Mbps. In general, European websites will respond a little quicker than compared to South African websites.

  • My download allowance status meter does not seem to match my usage reported on the Check Usage page. Why?

    The Download Allowance status, available through the YahClick Status Meter application or via your terminal’s System Control Center, reflects the actual number of bytes you can download before your download speeds are reduced. This status comes from the YahClick gateway in real time as you receive data. The Check Usage page displays the total historical data downloaded and uploaded from your terminal. This data comes from usage records that are updated hourly. Based on network policies and system status, some data transmitted to your terminal may not be counted against your Download Allowance, but all data will be recorded on the Check Usage site for reference. For example, any data that you downloaded during the Download FreeZone will be reflected on the Check Usage page.

  • Can my terminal’s IP address allocation change?

    Yes. Should you Upgrade or Downgrade your service plan, there is a good chance that your terminal will be allocated a new IP address range. This is especially important for customers subscribing to the static public IP feature, as the one-to-one NAT configuration would then have to be updated to reflect the new IP address.

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