good function also with fax machine

Cisco 2 Port Phone Adapter VoIP adapter I bought for connecting the MFP with fax function of the Fritz box. Since in this corner of the room no phone socket was available, I have connected the device to the switch.

The basic device functions via a web interface, there was the IP address via DHCP, as well as a static IP is possible.

For connection to the FB there set up a telephony device and enter the following parameters:
Proxy: fritz.box
Display Name:
User ID:
Password:

For a fax machine still in the Voice Menu -> Line 1 Set the parameters T38.

Since the unit still got get the latest firmware and update via the web interface with a very old firmware in [...].

In addition to the described functions, are the possibilities SNMP set to name syslog server and adjust the various SIP parameters.