Specifications of KT202-S3 WiFi Cell Phone
KT202-S3 is a high-performance industrial WiFi cell phone designated for clients from the Coal-mine industry. Besides the call and short message services as owned by ordinary cell phones, KT202-S3 also integrates functions of Group Call Talk, One Touch SOS, Offline Communication, Self-Organized Network and Assisted Positioning. With the advanced industrial design, KT202-S3 Satisfies the explosion proofing, water proofing, dust screening and shock proofing requirements,

ND can be used under high temperature, low temperature, humid, dust environment or with Presence of flammable and explosive gases. KT202-S3 supports "Push to Talk" and "One Touch SOS" functions, as well as "Offline Communication" and "Self-Organized Network Communication" functions.

Basic Parameters
L Size: 120mm(L)*52mm(W)*22mm(H)
L Weight: 138g
L Screen: 1.8 in., TFT LCD
L Battery capacity: 1200mAh
L Language: Chinese and English display interface; Chinese and English input l Standby time: >100h; Talk time: >6h
L Barrier-free speech range: >400m
L Lead-free technology; National standard compliance

Wireless Parameters
L Supporting IEEE 802.11b/g/n;
L Frequency band: 2.4-2.483GHz;
L Transmit power: 15~17dBm;
L Receiving sensitivity: >-90dB;
L Supporting fast Inter-AP handoffs to keep speech fluency;
L Supporting WEP64, WEP128, WPA and WPA2 encryptions;
L Supporting DHCP automatic acquisition and static configuration of network parameters.

VoIP
L Supporting SIP 2.0 (RFC 3261), good compatibility;
L Supporting audio coding and decoding: G. 711u G. 711A G. 729A;
L DSP echo cancellation technology to cancel large-volume echo; High voice quality; Short
Time delay; High stability;
L Environmental noise suppression;
L Supporting large-volume hands-free call;
L Supporting caller ID display, call waiting and call forwarding functions

SMS, Phone Book and Call Record
L Sending and receiving Chinese and English messages;
L Storing 100 messages in Inbox and Outbox respectively;
L Supporting Input, Browse and Delete operations; Supporting speed dial; L Storing 400 name lists with addresses and phone numbers;
L Displaying phone number in groups;
L Supporting Search, Input, Browse and Delete operations; Supporting speed dial; L Storing name, number, address and email information;
L Storing 20 received calls, missed calls and dialed numbers respectively; L Supporting call records deleting or saving; Support speed dial.

Configuration and Upgrade
L Supporting manual configuration of parameters; Supporting cryptoguard of key
Parameters;
L Supporting automatic download of configuration file from Server; L Supporting TFTP wireless upgrade of software