Aastra OpenCom 131 User Guide - Page 132
Telephone type, OpenCom 130/131/150, Media Gateway card, OpenPhone 63 IP
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Voice over IP (VoIP) VoIP System Telephones ■ A VoIP system should be operated with a non-broadcast-capable IP connection. This may be an RAS connection, a VPN connection or another type of routed connection. An external DHCP server can also control a VoIP system telephone's start procedure. In this case, system software matching the type of VoIP system telephone must be transferred via TFTP. The file name is determined by the telephone type. If a Media Gateway card is installed, you can also specify the TFTP server on the card which has a higher performance. Telephone type Aastra 6773ip (OpenPhone 73 IP) Aastra 6775ip (OpenPhone 75 IP) OpenPhone 63 IP OpenPhone 65 IP RFP 32/34/42 OpenCom 130/131/150 Media Gateway card opi7x.cnt /ram/ip_tel/opi7x.cnt opi7x.cnt /ram/ip_tel/opi7x.cnt opi63.cnt opi65.cnt ip_rfp.cnt /ram/ip_tel/opi63.cnt /ram/ip_tel/opi65.cnt /ram/ip_tel/ip_rfp.cnt After the VoIP system telephone has been connected to the mains power supply, the start procedure is as follows: 1. The boot loader starts and shows the VoIP system telephone's MAC address in the display. A DHCP request is sent simultaneously via broadcast on the 255.255.255.255 broadcast address. 2. An IP address, network mask and the default gateway for the start procedure are sent from the DHCP server. Via the "Next server" option, the DHCP server also provides the TFTP server's IP address and the operations software's file name. The DHCP server uses the MAC address to select the operations software file which matches the type of device. 3. The boot loader loads the approximately 2 MB operations software file from the specified TFTP server. The TFTP server's IP address and the file's name are shown in the display. The loaded operations software is started. 130