Sennheiser UI770 User Manual page 3

Introduction
The use of office phones with hearing instrument solutions can be difficult, because
different brands of office phones use different proprietary/digital encoded signals.
Consequently, a traditional analog phone interface - such as the ConnectLine Phone
Adapter - will not work like it does with domestic/landline phones.
The only uniform way to interface to these systems across different brands/vendors is
through an analog headset interface which either works in parallel with the handset on the phone or, if available,
a dedicated headset interface/headset port.
The ConnectLine Office Phone Kit, which includes a Sennheiser Communications UI770 interface box and a special
ConnectLine interface cable, enables ConnectLine users to use PABX/digital office phones in two different ways:
1. Wired connection directly to the Streamer.
2. Wireless connection using the ConnectLine Phone Adapter 2.0.
ConnectLine
Interface Cable
UI770 Interface
Box
3