I you are considering purchasing an Alcatel Speedtouch Home modem, or just want to understand the modem you have better, you can determine its capabilties by decoding the product code on the bottom of the modem. The product code should look something like:
3EC18?????AA
All product codes should start with "3EC18" and end with "AA"...the stuff in the middle can be decoded as follows:
3EC18XYZSHAA
3EC18 - Standard Prefix
X - Model Type
Y - Modem Type
Z - LAN Interface Type
S - Software Functionality
H - Hardware Platform
AA - Standard Suffix
Model Types - X field:
| X | AC/DC | Plug Type | Wire A/B | Splitter Power |
| 2 | 110V/9V | US | 2/5 | - |
| 3 | 220V/12V | ROW | 1/2 | 5/6 |
| 4 | 220V/12V | UK&Sing | 1/2 | 5/6 |
| 5 | 220V/9V | UK/Sing | 3/4 | - |
| 6 | 220V/9V | ROW | 3/4 | - |
| 7 | 220V/9V | AUS | 3/4 | - |
| 8 | 110V/9V | US | 3/4 | - |
| 9 | 220V/9V | Korea | 3/4 | - |
Note: "2/5" means ADSL signal must be connected to pins 2&5 (the
outside pair) of the RJ-11 jack
"3/4" means pins 3&4 (the inside pair) of the RJ-11 jack.
This is the most common problem when people try to convert from one modem type to another. Most non-Alcatel modems require signal on pins 3/4, where as most of the Alcatel modems delivered in the US require pins 2/5. Make sure you re-wire your phone jack as appropriate.
Modem Type - Y field:
| Y | Modem type |
| 0 | Full rate, G.dmt, ANSI T1.413 only, POTS overlay |
| 1 | G.Lite only, POTS overlay |
| 2 | Full Rate (ETSI), ISDN Overlay |
| 3 | Multimodem (FR, G.Lite, ANSI) |
Note: Type "0" is the only one compatible with most US ADSL providers. Note also that some ADSL providers may require "CAP" encoding which is NOT compatible with "DMT" based modems.
LAN Interface Type - Z field:
| Z | LAN Interface |
| 4 | 10Base-T interface (half-duplex) |
| 5 | ATMF-25 & 10BaseT interface |
Unless you have and ATM interface card in your PC, you want type "4". However, I assume that type "5" would also work since it has both.
Software Functionality - S field:
| S | Default Software Package |
| B | Bridging + PPTP * |
| C | Bridging + PPTP * + Routing |
Note: What Alcatel calls "PPTP" really means that the modem can talk PPP over ATM (PPPoA) to the ISP and user can talk to the modem using Microsoft's Point-to-Point Tunneling Protocol client.
Hardware Platform - H field:
| H | Hardware Platform |
| C | R3.2 (3MB FLASH/ADNTF) |
| E | R3.2 (Korea, withouth Power Supply) |
Source: "Alcatel SpeedTouch Installationa and User Guide", Appendix A, 3EC16830AAAATCZZA ed. 2