Aastra OpenCom 131 User Guide - Page 123
MGW Interface Card, Internal SIP, Subscribers, Aastra 673xi/675xi, VoIP Phones
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Voice over IP (VoIP) SIP Telephony Aastra 673xi and Aastra 675xi SIP telephones Model Aastra 6755i Aastra 6757i Short description Model with illuminated comfort display, 802.3af (PoE) power supply, two Ethernet ports for PC and LAN, 6 programmable keys and 6 softkeys, 4 line keys, up to 3 key extensions with function keys or 3 key extensions with softkeys Similar to Aastra 6755i, but with illuminated premium display which provides space for 12 softkeys 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 Subscribers starting on page 117). 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 124). 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 122). 5. Connect the Aastra 673xi/675xi to your network and plug in the power supply. Details about this can be found in the installation manual which is provided with the Aastra 673xi/675xi. 121