state of a network connection. By selecting “View”Æ”Ping” and keying in the IP address or domain name of another device, the phone can check the status of its connection to that device. This can also be used to check the status of the Internet connection by pinging another device that is already on the public Internet.

3.5.3 Restart

By selecting “View”Æ”Restart”, the VOIP 2747 will perform a “warm restart.” This will unregister the phone from the gatekeeper or proxy server, and will also disconnect the modem connection if a modem is connected.

3.5.4 Display current software version

By selecting “View”Æ”Image Version”, the phone will display the current software version. The software version is identified by the date of the release of the software image.

3.5.5 Packet Trace for signal monitoring

Setting the “View”Æ”PKT Trace” to (Yes) will cause the phone to display all the signaling messages received on the LCD screen. This may be useful for debugging.

3.6 Advanced Configuration

DTMF Relay –For In-Band DTMF --Press “MENU” button, choose “Advanced” and press “MENU/OK”. Password is “1230”, press “MENU/OK”. Choose Phone Advanced Menu, press “MENU/OK”. Choose DTMF, press “MENU/OK”. Choose DTMF Relay, press “MENU/OK”. Choose INFO, and press “MENU/OK”. Restart the phone.

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Cortelco 2747 Restart, Display current software version, Packet Trace for signal monitoring, Advanced Configuration