Product Introduction:
GSM Payphone is provided by Sky Microwave Co. Ltd,a major Corded Telephones supplier in Broadcast & Telecom wholesale industry in China.You can check out the specification of GSM Payphone below or get any optional result clicking into the following keywords and you can check the authentications and testimonials of GSM Payphone .
Description:
Dual-band, GSM 900/1800/1900MHz; 850/1800/1900MHz optional Requires an external common phone linked to the machine For payphone (requires an external calculator) Volume adjustment, caller ID Battery backup RJ-11 socket for phone line Provides reversal polarity signal for billing
