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Yes,it does.
Please go here:
httphttps://www.openvox.cn/pub/miscdocuments/GSM%20Gateway/OpenVox%20%20GSM%20Gateway%20HTTP%20Interface_enother_documents/OpenVox_SMS_API_Demo_.pdf
Q7,Why did the SMS sending fail onĀ GSM/CDMA/WCDMA VoIP Gateway?
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