I just want to step in and put the record straight on speeds here. You do NOT need a T1 if you have only 100 visitors per year.
Let's say a typical webpage on your site is 50k. 10 users hitting at the same time hence download 500k. However, these users are not going to get that page in one second. Some will be on dial-up 56k modems. Others will be on ADSL or cable :D
So, how long for that 50k? probably around 12secs for 56k modem (around 5k/sec) and 2secs for DSL equivalent (around 50k/sec).
But, we don't mind it being a bit slower. So. How many users can we support simultaneously on an ADSL connection...? Well, let's say 256k upload (which is standard for ADSL). That's Kbits, remember! Divide by 8 to get Kbytes. = 32k/sec. So, we can serve around 5 average users AT ONE MOMENT IN TIME.
That means that unless your site pushes more than 5 SIMULTANEOUS users consistently, you can make do with ADSL.
Now, that's looking on a per-second basis. You could easily have 1000 users per hour and not have problems (average = only 16 per minute!) so long as they were nice and waited their turns :p
The trouble is, things don't work like that. People tend to come along all at once, at peak times. When looking at bandwidth, you always need to figure out what your maximum demand will be (like electricity). Also, what overheads do your pages have? That's more of a server-spec question, but still needs to be factored in somewhere ;)
So, the figure of 100 per year is totally, totally out.
Now for the info about the speeds themselves. By the way, only modems are modems! That's for 56k and to a certain extent DSL and cable (called modems but actually they are network cards, basically.) Leased lines such as T1s use network cards, NOT MODEMS.
Here's some info:
Bandwidth Comparison and Reference Guide
NORTH AMERICA, JAPAN, KOREA, ETC.
Service Voice Channels Speed
DS0 1 64 Kbps
DS1 (T1) 24 1.544 Mbps
DS1C (T1C) 48 3.152 Mbps
DS2 (T2) 96 6.312 Mbps
DS3 (T3) 672 44.736 Mbps
DS4 (T4) 4032 274.176 Mbps
EUROPE (ITU)
E1 30 2.048 Mbps
E2 120 8.448 Mbps
E3 480 34.368 Mbps
E4 1920 139.264 Mbps
E5 7680 565.148 Mbps
SONET CIRCUITS
Service Data Rate (Mbps)
STS-1 OC1 51.84 (28 DS1s or 1 DS3)
STS-3 OC3 155.52 (3 STS-1s)
STS-3c OC3c 155.52 (concatenated)
STS-12 OC12 622.08 (12 STS-1s, 4 STS-3s)
STS-12c OC12c 622.08 (12 STS-1s, 4 STS-3c's)
STS-48 OC48 2488.32 (48 STS-1s, 16 STS-3s)
ITTU-T Data Rate Payload Rate
STM-1 155.52 150.336
STM-3 466.56 451.008
STM-4 622.08 601.344
STM-6 933.12 902.016
STM-8 1244.16 1202.688
STM-12 1866.24 1804.032
STM-16 2488.32 2405.376
ETHERNET
10 Base T 10 Mbps
100 Base T 100 Mbps
Gigabit 1 Gbps
There is NO T6. It only goes up to T4. And you can get ADSL that is faster than T1, however that is asynchronous so it would be better to get SDSL :)
I hope that clears some things up :cool:
::] krycek [::
mattover-matter, please try to check your info before posting. Speculation does not help anyone, and can easily confuse.