Shenzhen Guanri Telecom-Tech Co., Ltd, is a top rank payphone manufacture in China. We are pleased provide excellent various range of products such as: -Guanri's payhone terminals range from outdoor to indoor, from unsupervised to supervised, from fixed to wireless, covering almost more than 25 models. -Guanri Intelligent-network payphone system. -payphone solutions. -Guanri Uplink and downlink Amplifier of GSM/ CDMA network Guanri has established close business relation with Thailland, Indonesia, Pakistan, Morocco, and Singapore etc.