Extensions - Gigaset SX553 WLAN dsl First Steps

Extensions

Your Gigaset SX553 WLAN dsl offers you two internal extensions that you can use for
making calls via the fixed network or via VoIP. You can assign each extension the rele-
vant phone numbers for incoming and outgoing calls and make other settings such as
call waiting, or display the caller's number, or other technical settings.
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In the Advanced Settings – Telephony menu, select the option Extensions.
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Select the Phone number (your VoIP service provider or fixed network) for incoming
and outgoing calls under Extension 1. The list of numbers for Internet telephony is
the one you set up in the VoIP menu (see page 92).
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In the Additional phone numbers fields, you can select which numbers you want
to use for calls on this extension with a prefix (#1* – #4*).
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Select Receive calls for all numbers if you wish to receive all incoming calls on all
extensions.
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Select the option Call waiting if you want to permit a signal for an incoming call
when the lines are busy.
Configuring the Advanced Settings
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