Configuring Operational Features

Operational Features

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3

Aastra Web UI

Click on Advanced Settings->Global SIP->Advanced SIP Settings.

Enter a value, in seconds, from 120 (2 min) to 3600 (1 hour) in the "BLF Subscription Period" field.

Click to save your changes.

Operational IP Phone Features

41-001160-00, Release 2.1, Rev 04

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Aastra Telecom 53I, 57I CT, 55I manual Click on Advanced Settings-Global SIP-Advanced SIP Settings