this is a high quality, low cost, multi-function of dect combo phone with telephone answering device, there are lcd displays and keypads on both base unit and handset, a single base unit can be registered by five handsets, and a single handset can register to four base units; it can perform intercom between handsets and handset to base unit; it enables full duplex hands-free conversation for both base unit and handset; wireless range up to 350 maters.
phone specifications & features:
>dect cordless technology, compatible with gap and dect6.0;
>supports eco mode to reduce energy consumption and radiation
>3 line display for the lcd, one line of icons, one line 7-segment (16 digits), one line 5x7 dot matrix (12 characters);
>lcd & keypad backlight supported;
>dtmf & fsk dual mode caller id;
>a single base unit can be registered by five handsets, and a single handset can register to four base units; 
>pre-dialing and off hook dialing for both base unit and handsets;
>phonebook and alphabetic searching;
>phonebook review allowable during a conversation;
>call transfer and conference call;
>tone alarm and icon indication for low battery;
>5 steps digital volume control for ringer tone/earpiece volume /speaker volume
>10 melodies for ring tone and set different melody for different call
>timer and alarm clock functions;
>tone/pulse dialing mode selectable
>supports 16 languages display
>automatic/manual mode selectable to answer an outside call
>key lock and dialing barring functions;
>high quality & full duplex hands-free conversation for both base unit and handset;
>8 hours talk time and 10 days standby time;
>up to 50 meters wireless range inside room and up to 350 meters wireless range outside room.
tad specifications & features:
>44kbps compression algorithm, 14-60 minutes of voice storage time depends on the capacity of flash
>2 available voice date-time stamp (dts) and user prompts (english / german)
>optional to work without voice prompt selectable
>recording up to 59 messages
>ogm recording up to 60 seconds
>ogm1/ogm2 selectable
>memo and icm recording up to 120 seconds
>2-way (conversation) recording function
>erase each message/all messages
>ring delay selectable
>busy tone/ring tone/continuous tone detection
>dtmf detection for remote control
>call intercepts function by stop key
>vox function-5 seconds/8 seconds voice detection selectable for line disconnection
>new message indication
>digital volume control (7 steps volume adjustable at least)
>remote control from handset
>remote control from the other end telephone
>4-digit user remote codes, default “0000”

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