Siemens Giga762SX User Manual page 101

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In the Advanced Settings menu, select: Telephony – Extensions
Phone connectors
The two telephone ports Phone 1 and Phone 2 of the Giga762SX WLAN dsl have the
internal phone number *A1 or *A2.
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Click Edit to adapt the settings for an entry (page 104).
Configuring Advanced Settings
103