Macau

CTM
CTM, or Companhia de Telecomunicações de Macau S.A.R.L, is the main phone company in Macau.

APN settings - Subscription
 * username: guest
 * password: guest
 * APN name: ctm-mobile

APN settings - Prepaid
 * username: none
 * password: none
 * APN name: ctmprepaid
 * Proxy: 192.168.99.2
 * Port: 8080

and


 * username: none
 * password: none
 * APN name: ctm

Note: I'm not sure what the second APN is for, and it's not the primary APN, but the help-desk person at the CTM shop added it for me.

To register basic cell phone service first dial 141. Then to register the Data Package Plan 2 service (1 Gig of data) dial the code 1773.

CTM
CTM offers a number of different prepaid voice plans (such as "BEST Prepaid IDD/Roaming"), some of which give you the option of then adding monthly data plans to them. Data plans include 1 Gig, 2 Gig, and Unlimited per month. They also have tourist-friendly data-only plans for 1-day or 5-days. For details check the web site www.ctm.net (there's an option to browse the site in English).

To see your remaining balance dial 1772. Alternatively (for prepaid accounts, at least) use code *122# [send] to show the current balance and expiry date on-screen, followed by an SMS giving fuller details.