Automatic GPRS Settings:
If you want to receive the settings automatically, go to your area “My Account”, then “Services” – “Service Activation”.

Manual GPRS/MMS  Settings for TMN Mobiles Portugal.

MEO APN settings for Android:

Go to Menu -> Settings -> Wireless & networks-> Mobile networks -> Access Point Names -> New APN and type the following

Name : MEO
APN : internet
Proxy : Not Set
Port : Not Set
Username : Not Set
Password : Not Set
Server : Not Set
MMSC : Not Set
MMS Proxy : Not Set
MMS Port : Not Set
MCC : 268
MNC : 06
Authentication Type : Not Set
APN type : default
APN protocol: IPv4
APN roaming protocol: IPv4
Bearer : unspecified
MVNO type: None

MEO APN Settings for iPhone

Go to Settings-> General Settings-> Network->Turn ON Cellular Data-> Cellular Network -> APN and enter the following Details

CELLULAR DATA:
APN: internet
Username: Blank
Password: Blank
LTE Setup (optional)
APN: Blank
Username: Blank
Password: Blank
MMS:
APN: mmsc.tmn.pt
Username: blank
Password: blank
MMSC: http://mmsc/
MMS Proxy: 10.111.2.16:8080
MMS Message Size: 1048576
MMS UA Prof URL:Leave blank