Viking Feedback Eliminator HT471TW Installs in optional adapter slot

Installs in optional adapter slot under the SL1100 telephone

5ms Response Time

and maintain- Delivers easy integration productivity applicationsNEW IN THE BOXOne Year Warranty

The high quality Yealink SIP-T20 Entry Level IP Phone  has 2 SIP accounts

De-Fog Extreme Weather Image Compensation

Viking Feedback Eliminator HT471TW Installs in optional adapter slotViking Feedback Eliminator High Quality (80k 40k) Digital Message Storage High Output 2v Rms Into 600ohms 16 To 32 Second Record Time (dip Switch Selectable) Compatible With Paging Ports Or Trunk Ports Activate Recording From Vox Detection Contact Closure Or Loop Detect (trunk Mode Only) Vox Sensitivity Adjustment Cancel Page Feature Selectable Page Repeat Selectable Prepage Alert Tone Selectable Postpage Alert Tone Adjustable Alert Tone Volume N. o.