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Register Prefix Message
After opening a TCP socket to the manager, the client must issue this command to register its message prefix string:
Command letter: P
Option: X = Do not respond
(default: Respond with success or failure)
Command syntax, Client to Manager:
$PCALP[X], <prefix string>\n
Note that there is no unregister command. A client wishing to do so must first disconnect from the SMS server, then
reconnect and issue a new register command.
A client may register a blank prefix ($PCALP[X],\n). The client will therefore receive all unmatched messages.
Receive All Messages
After opening a TCP socket to the manager, the client can issue this command to receive a copy of all incoming SMS
messages:
Command letter: A
Option: X = Do not respond
(default: Respond with success or failure)
Command syntax, Client to Manager:
$PCALA[X], \n
A client may disable receiving all messages by registering a prefix (P command).
Status Message
The status message may be used for debugging SMS clients. An application may use it to determine which prefixes are
currently registered.
Command letter: S
Option: X = Do not respond
(default: Respond with success or failure)
Command syntax, Client to Manager:
$PCALS[<response format>] \n
Response Format: <TBD>
Vanguard 3000 Series Multicarrier Cellular Data Modem & IP Router PN 001-7300-100 Rev. B
| Page 113
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