Four Channel’s GSM VoIP Gateway
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B. GoIP400 use SMS Dial Mode 1 and add a prefix as 999:
One mobile phone’s number is
(86)13800000000,
i
t sends a SMS
“
8675588228822”
to
GoIP400’s GSM SIM card. When GoIP400 device receive this SMS, it will auto to call
number as 9998675588228822, and the caller is number
8613800000000.
The sent out signaling as follow:
z
Mode 2 example:
GoIP400 use SMS Dial Mode 2:
