# Setting the SMSC Number and Message Validity Period

For the first time to send a text message, the Short Message Service Center (SMSC) number needs to be set. The message validity period is the period in which text messages can be stored in the SMSC.

#### Context

NOTE:

The information of the SMSC number is loaded automatically. If the SMSC number is null or is deleted by mistake, contact your network service provider.

#### Procedure

1. Choose Tools > Options > Text Message.
2. Set the SMSC number and message validity period.

Parent topic: Text Message Settings