Aastra OpenCom 100 series, Mounting And Commissioning User Manual

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Voice over IP (VoIP)
127
The Aastra 673xi/675xi SIP telephones provide, besides the VoIP telephony, additional
system telephony features which you can configure conveniently and safely with the
help of the Web configurator. The Aastra 673xi/675xi SIP telephones support G.711
codec (a-Law and µ-Law), the G.729 codec and the transmission of DTMF signals
according to RFC 2833.
An MGW Interface Card is required to operate Aastra 673xi/675xi SIP telephones with
the OpenCom 100 communications system. As an additional requirement, a memory
card with 256 Mb or more must be installed. This will provide the necessary memory
space to store the firmware files for the varying Aastra 673xi/675xi SIP telephones.
The general commissioning takes place in the Configurator of the OpenCom 100
communications system with the following steps:
1. Under System : Licences , activate the SIP system devices (see also Internal SIP Sub-
scribers starting on page 123).
2. Under System : Components load the firmware addons to the memory card.
3. Add a new entry under Telephony : Devices : VoIP Phones . Enter a call number
and select the telephone type as Aastra 673xi/675xi. Optionally enter the MAC
address and the IP address of the Aastra 673xi/675xi (see Aastra 673xi/675xi DHCP
starting on page 129).
Note
If you want to allocate the VoIP profile to an Aastra 675xi or Aastra 673xi SIP system
telephone, the
Voice Activity Detection option should be deactivated for all codecs.
4. Under Telephony : Devices : System phones configure the common settings, the
programmable keys and the softkeys for the Aastra 673xi/675xi (see Aastra 673xi/
675xi Setup starting on page 128).
Aastra 6735i Similar to Aastra 6755i, but with Gigabit-Ethernet
Aastra 6757i Similar to Aastra 6755i, but with illuminated premium display
which provides space for 12 softkeys; separate wall power
supply in the package
Aastra 6737i Similar to Aastra 6757i, bit with Gigabit-Ethernet
Aastra 673xi and Aastra 675xi SIP telephones
Model Short description