Aastra Telecom 57I CT, 55I, 53I manual Aastra Web UI

IP Phone Administrator Guide Operational Features

Operational IP Phone Features

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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 "ACD Subscription Period" field.

Click to save your changes.

5-134 41-001160-00, Release 2.1, Rev 04