Voice over IP (VoIP) SIP Telephony
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Details on using the Aastra 673xi/675xi SIP telephones as well as an overview
about the possible function key assignments can be found in the “Telephony with
SIP Phones on the Aastra 800/OpenCom 100 communications system” user guide.
9.4.3.2 Aastra 673xi/675xi DHCP
The address and device configuration is transferred from the OpenCom 100 com-
munications system to the Aastra 673xi/675xi SIP phone using the DHCP protocol.
You can configure the necessary address settings while adding a device entry
under Telepho ny : Devices: VoIP Phones differently:
■ You can enter the MAC address of the Aastra 673xi/675xi manually. Depending
on the operation mode of the DHCP server, you can also enter the IP address
manually. For this, change the Status setting on the Network: DHCP page to
“Static address assignment”. Optionally, you can use the dynamic IP address
assignment from the DHCP server. For this, change the Status setting on the
Network: DHCP page to “Dynamic address assignment” and also change the
do not disturb Calling
internally / ex-
ternally
Switches call protection on or off; LED indica-
tor indicates active function
Pick-up – Picks up a call from another device in your
pick-up group
Take – Transfers an active call from another device
operated on you internal call number
Phone Lock – Locks or unlocks the telephone
Logout – Logs out the telephone and shows the Login
Display
XML URL Calls the defined URL from a Web server. Pro-
grammable function control via XML data re-
trieval (please refer to the “IP Phone Admin
Guide” administrator guide)
transfer – On the Aastra 6753i only: starts a transfer call
conference – On the Aastra 6753i only: starts a three-party
conference
Function keys for Aastra 6730i / 6731i and Aastra 6753i / 6755i / 6757i
Key type Parameter Function
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