Raha DSL

"Always-on" means that the ADSL broadband sets up a permanent connection to the internet that lets you access the internet as soon as you switch on the computer and the modem. You do not need to dial up like when you are using a standard modem connection. There will be no call charges for Internet access but voice calls will be charged as before.

If you are using a connection with 1 Mbps download speed then you are having a speed that is 17.5 times faster that normal dial-up, about 8 times faster than ISDN and about 8 times faster than DIAS.

Fast downloads. At least 8 times faster than dial-up connection. "Always on" connection. Telephone and Internet access can be used together. No telephone call charges to access internet. Cost effective way to access Internet. A host of free content on the web can be downloaded faster.

No. ADSL can run on your existing basic phone line. If you do not have a TTCL connection then you need to get one from TTCL before you can ask for an ADSL broadband connection.

Yes. ADSL uses a different set of frequencies and does not interfere with telephone conversation. Conversely, making a phone call while accessing the Internet does not affect the speed of the ADSL connection.

Fill up a registration form and deposit at rahaDSL customer centers. These forms are available on the rahaDSL web-site. You can also register online at rahaDSL website by filling a simple form. Click here to register online>>

CPE stands for Customer Premise Equipment. This would consist of an ADSL modem/router and a stand-alone or a build in splitter to separate the telephone and broadband connections. You can purchase your own CPE or rahaDSL can provide the same. Please click here for details.

If at your home/business, the same line is used for voice and data then you need to separate out these signals by using a splitter. The splitter will have one output for your telephone and one or more for the ADSL modem which in turn connects to your computer. This comes along with the modem that rahaDSL provides.

These could be the reasons for this. Your distance from the nearest ADSL Central Office equipment(DSLAM) may be beyond the technically permissible limit. Visibly the distance of your house/business may look same to you as your friend's but it is the actual cable length that counts. Once you apply for a rahaDSL broadband connection, your line will be tested and you will be informed whether you home/business is covered. Other reason could be that your friend has a TTCL fixed line phone and you do not.

When the information flows from somewhere e.g. a web-page or a site to your PC you are "downloading"; on the other hand when you send information e.g. request for a web-page, you are "uploading".

ADSL is an asymmetric technology giving different rates in "down" and "up" directions. This is perfectly fine since we download (browsing, downloading clips, music etc) much more than we upload (a website address, a few clicks etc).

To connect to ADSL you need an ADSL modem/router to be installed at your home/business. On your PC you should have an Ethernet port with RJ45 socket. Some ADSL modems have a USB port and you could connect these modems to the USB port of you computer.

Once your connection comes through, an installation pack consisting of the CPE and installation guide can be brought from any listed vendor or from rahaDSL office. If you have requested rahaDSL for installation, a technician will visit and complete the installation for you. If you are buying your own Modem you can still request for installation on payment of the requisite charges. We will, however, only support equipment supplied by us.

Once we receive your order, rahaDSL will do the required line checks and assuming these pass it takes around 5-10 working days for the service to be enabled by TTCL at your local telephone exchange.

No. With your Welcome Pack you get an installation CD which includes everything you need to get started. If you choose to use your own equipment (e.g. modem or router) then you will need to ensure you have the right software.

When you are connect to the Internet, your PC is automatically allocated an IP(Internet Protocol) address to identify it to the outside world. There are two types of IP addresses, dynamic and static. Dynamic IP changes from session to session while static always remains same.

IP addresses could be dynamic (that typically change with each session) and static (that are permanently allocated to you).

A static IP address may be required for certain services or applications you use. These typically include:

Running your own mail server (SMTP inbound).
Many VPN (virtual private network) implementations require one or both sides of the VPN to have a static IP address.
If you are connecting to your company network and need access through their firewall.

Yes. You can change your rahaDSL plan at any time upward and downward on month end.

ADSL connection is given for a particular TTCL fixed line. If you move, ADSL can be shifted to a TTCL line in the new location subject to availability in that area.

Yes. The ADSL broadband service uses your normal analogue exchange line to provide the high speed Internet access, so you still need to pay the line rental and any normal calls on that line.

This will depend on what you will be using broadband for. If you are using it from home or a small office, choosing a service that offers a speed of 128 Kbps with 1GB transfer rate is ideal for general surfing and emailing. However, if you are downloading lots of videos or sending very large files, it may be better to choose a broadband service with even higher capacity.

Broadband from rahaDSL is charged monthly in advance. You can choose to pay through pre-paid cards available at the authorized vendors or direct payment at the rahaDSL office.

No. The helpdesk is there to help you with problems relating specifically to the Broadband service from rahaDSL and the hardware/software provided by rahaDSL. If you have purchased a product where hardware was not provided as part of the service, the helpdesk will not be able to assist you with it, and you should contact your hardware supplier.

You can have more than one line, however we cannot guarantee service on broadband connections, therefore we do not suggest an additional broadband line for redundancy/up-time.

No, you will be able to use the modem/router provided with your current Broadband.

Yes, if you choose the right broadband plan, you would be permitted to connect more than one computer. However, all the users will share the bandwidth allocated to you.

rahaDSL aims to provide fast, reliable service to all the broadband customers. Some customers try to hog disproportionate amount of available resources. Customers might select lower end plans for heavy work or make excessive use of peer-to-peer file sharing. This could result in 20% users using over 80% resources. High levels of usage by a small number of users risks reduced performance for all users. rahaDSL has the following options to solve this problem : 1. Lower the contention ratio 2. Provide more resources and increase the prices 3. Set download limits. The first two options are not fair to 80% users who use the resources sensibly. As such setting download limits was the best and fair solution. If any user requires higher limit he/she can upgrade to higher plan.

One GB is 1024 Megabyte or 1073741824 bytes. You can do the following with 1 GB download limit:

An average web page is about 50 kilobytes in size - so you could download around 20,000 web pages for 1 gigabyte.
An hour of surfing the web would be around 10 megabytes (200 pages) so you could surf non-stop for about 100 hours for 1 gigabyte.
An hour of streamed radio would use about 15-20 megabytes.
An hour of streamed video uses around 100-150 megabytes.
Playing an online game typically uses about 10-15 megabytes per hour.
Emails are very small - so 100 emails would be just 1 megabyte - or 100,000 emails for 1 gigabyte! (of course the attachments count extra).
A super-high resolution (5-6 megapixel) digital camera JPEG picture or typical MP3 music file is about 2-3 megabytes so you could download 350-500 of these images/music files for 1 gigabyte. Very few users would actually exceed the download limits set.

A firewall is a system designed to prevent unauthorized access to or from a private computer/network. It is highly recommended that all Internet users (even using standard dialup access ) should have a firewall to protect their computer/network. As ADSL broadband service are "always on" it is even more important. Many free firewall software like ZoneAlarm, Sygate Personal Firewall etc are available on the Web for download.

ADSL broadband services do not come with a SLA (service level agreement). However rahaDSL aims at repairing 80% of ADSL circuit faults within working hours. If you require a guaranteed high-speed connection to the Internet you would probably require a leased line instead of ADSL broadband.

NAT stands for Network Address Translation/Network Address Translator. Each computer connected to the Internet needs to have a unique IP address. To use the global IP addresses more efficiently, computers belonging to a business can have "local" addresses. NAT would then allow connecting multiple "local" computers to the Internet using one IP address. Each NAT has a "table" of local IP addresses and globally unique addresses by which the NAT box can translate the local IP addresses to global address and vice versa.