Appendix A – Application Programming Interface (API)
Multi-Tech Systems, Inc. MultiModem® iSMS User Guide for Administrators 105
TCP
TCP Receive API Response to recvmsg? command:
From: MultiModem iSMS/1.40
1
1
3
Msg_index_1
+919742204905
09/07/24
11:56:52
Unicode
0B880B870B890B900B920B930B930B930B930B940B930B930B940BB80BCA0BCB0BB90B9E0B9E0BA30BAF0B
AE0BAA0BA90BA40BAF0BB20BB50BB70BB80BB80BB90BB9
Msg_index_2
+919742204905
09/07/24
11:40:48
ASCII
MultiModem iSMS easy way to send bulk SMS. Go to MultiTech site for more details
Msg_index_3
+919742204905
09/07/24
11:57:29
Extended ASCII
MultiModem iSMS supports Unicode ASCII and Extended ASCII Go to MultiTech site for
more details
Error responses for the above commands will be in the following format:
HTTP
HTTP/1.1 200 OK
Content-type: text/html
Err:value
TCP:
Err: value
Error Codes
Receive API
602 Parse Error Send API, Query API,
Receive API
604 Filtering with SMS Text whose message size is greater
than 280 chars (70 * 4 for Unicode is the maximum
possible size of the SMS received by the MultiModem
iSMS wireless modem)
Receive API
605 Recipient Overflow Send API, Receive API
608 Server Busy Send API, Receive API
616 Invalid Time/Date Input Receive API
617 Invalid Count Input Receive API
618 Service Not Available Receive API
619 Invalid Addressee Receive API
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