Aastra 673Xi/675Xi Sip Telephones - Aastra OpenCom 100 Mounting And Commissioning User Manual

Voice over IP (VoIP)
Features
Call transfer
Blind Transfer
Keypad as "INFO" message

9.4.3 Aastra 673xi/675xi SIP Telephones

You can operate the SIP telephones of the Aastra 673xi and Aastra 675xi product
families at the OpenCom 100 communications system. The firmware of the com-
munications system already includes the matching firmware files for the following
SIP telephones:
Aastra 673xi and Aastra 675xi SIP telephones
Model Short description
Aastra 6730i Basic level version of the Aastra 673xi products, 5 volts input via
wall power supply, display with 3 lines, 8 programmable keys,
2 line keys
Aastra 6731i Similar to Aastra 6730i, but with 802.3af (PoE) power supply,
two Ethernet ports for PC and LAN, separate 48 volts wall power
supply available
Aastra 6751i Basic level version of the Aastra 675xi products, display with 3
lines, 802.3af (PoE) power supply, two Ethernet ports for PC and
LAN
Aastra 6753i Similar to Aastra 6751i, but with headset connector,
6 programmable keys, 3 line keys, up to 3 key extensions with
function keys
120
Notes
before and during a call; operation
must be available.
SIP only: forwarding an incoming call
without accepting the call; feature
must be supported by SIP telephone or
by the SIP software.
DTMF tones cannot be securely trans-
ferred "in band" via compression co-
decs. Digital "out band" transferral as
"INFO" SIP message or via RFC 2833/
4733 is supported. This feature must be
available and activated on a SIP tele-
phone or in the SIP software.
SIP Telephony