China (Mainland) GSM And PSTN Exchange

Specifications: Product Description this device have RJ 11 line to PSTN land line ,and a SIM card to the box with GSM network. you can dial in to GSM number,the base will pick up PSTN line,you can dial again though PSTN land network to any people you want to the base will auto-dial special number to call one people. anther,a call though PSTN land line will change GSM network by SIM card number to call special number .

Sell 2 line telephone(GSM PSTN) transfer for difference region to save fee 2 line telephone can be auto-transfered, when you(A place) dial one line phone number to the base(B place), the base test and pick up anther line, you will hear anther dialling tone, you can dial the phone(C place) number again.

Used in borderline of country or difference region to save fee! FOB prices (for minimum order quantity)---------98usd Minimum order quantity--------------------------100set Sample availability/cost------------------------200usd