User manual

91FX 250 / FX 500 User Manual
IV. Telephony
Interface
1. Select European Caller Line ID Phone connected or US Caller Line ID Phone
connected from the Telephone Interface Conguraon drop-down menu.
2. Click Update to allow the seng to take eect.
Port Conguraon
For each of the 3 ports, a choice of the quality calls can be selected. Select your ideal call
quality and click Update.
Primary Handset
Phone Port