The Basics
Ring Tones
Strata CIX DP5000-series Telephone UG 10/10 17
Speakerphone/Microphone Sensitivity Adjustment
When you are using the speakerphone, high ambient noise levels may cause the party
you are talking with to be to cut off frequently. If this happens, follow these steps to
lower the sensitivity of the microphone on a DP5000-series telephone. The default is
normal sensitivity.
1. Press 3+6+9+Hold (simultaneously).
2. Press 0.
3. Press Programmable Feature Button 3 (FB3) to toggle On/Off.
FB3, LED On: Lower sensitivity
FB3, LED Off: Normal sensitivity
4. Press Hold to set the option.
5. Go off-hook, then on-hook to exit the program mode.
Full Duplex Speakerphone Environment Setup (DP5130-FDSL)
The DP5130-FSDL has a powerful integrated full duplex speakerphone that provides
bi-directional voice transmission, allowing simultaneous talk. The microphone is
located on the front right side of the telephone, so all objects need to be kept well clear
of that area to ensure there are no reflections that might generate an echo or other
feedback. In a full duplex speakerphone environment, a number of conditions
including room acoustics, network conditions, or the other party’s equipment can
induce echo, a short silence, or clipped speech, so it is important to use the following
recommendations for optimal performance.