It's a device that enables communication by converting GSM cellular network signals to a format compatible with landline or Public Switched Telephone Network (PSTN) devices. Essentially, it bridges the gap between traditional landline telephones or other communication systems and the GSM mobile network. ;
3 Party Call conference 2 RJ11 parallel port Can be connected to EPABX for usage in Multi User Environment Support Caller ID Indian Dial ToneBattery Backup (Optional) Can enable incoming lock functionSIM base locking ( Optional) Polarity reversal LED indication On/OFF switch
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