Panasonic EB-A100 - Manual (Page 55)

52 Messages Menu
Create
Message centre
It is possible to receive, display, edit and/or send text
messages of up to 1520 characters in 10 messages
(depending on the language), to the network that has a
roaming agreement (depending on the recipient’s phone
options). Before sending a message, you need to enter the
Message centre number into Settings.
From Messages
1.
4 Settings > Message centre A (Select)
2. Enter the message centre number in the international
dial format (see “International dialling” on page 16)
A (OK)
NOTE: Your network operator may have pre-programmed this
number. Do not change this number as it may cause the failure of
SMS Messaging.