Yealink SIP-T2 SERIES Administrator's Manual page 187

To configure the interval for re-register when registration fails via web user interface:
1. Click Account->Advanced.
2. Enter the desired interval in the SIP Registration Retry Timer(0~1800s) field.
3. Click Confirm to accept the change.
To configure auto linekeys feature via web user interface:
1. Click on Features->General Information.
2. Select Enabled from the pull-down list of Auto Linekeys.
If Auto LineKeys is enabled, you can automatically assign multiple DSS keys with
Line type for a registered line on the phone.
3. Click Confirm to accept the change.
Configuring Basic Features
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