system development, network, multimedia
>SMS telephone ET-09n Receive/send the message on PSTN, fixed-line to mobile phone ...
>SMS Phone ...
>Caller ID Display Phone ...
>1.Back-up and restore phonebook data from SIM card2. Memory:16KB-500 telephone records.(2 different SIM Cards data Storage)3. Display the names(english only) & numbers on ...
sim card backup device,bluetooth,headset
Voice over IP
Single Gong Ringer
Double gong ringer
Industrial Extelsion Bell
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