One-Channel GSM VoIP Gateway
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A mobile phone’s number is (86)13800000000, it sends a SMS “8675588228822” to GoIP1’s
GSM SIM card. When GoIP1 device receives this SMS, it will automatically call the number
8675588228822, and the caller is number 8613800000000.
The sent-out signaling as follow:
B. GoIP1 use SMS Dial Mode 1 and add a prefix as 999:
A mobile phone’s number is (86)13800000000, it sends a SMS “8675588228822” to GoIP1’s
GSM SIM card. When GoIP1 device receives this SMS, it will automatically call the number
9998675588228822, and the caller is number 8613800000000.
The sent-out signaling as follow:
