Rainbow Electronics FARGO MAESTRO 100 (with TCP_IP) - Manual (Page 331)

PLMN Commands
Operator Selection +COPS
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WM_DEV_OAT_UGD_049 - 001 VOLUME 2 August 23, 2007
15.2.6 Notes
• If an incoming call occurs during a PLMN list request, the operation is aborted
(+CME ERROR: 520) and the unsolicited RING appears.
• If SPN (Service Provider Name) is present in the SIM, it will be returned in both
long and short alphanumeric <oper> fields. The string in the "short" field will be
the SPN truncated to the appropriate number of characters (10).
• The fact that the network supports emergency call (+CME ERROR: 547) does
not imply that emergency call without SIM is working. The only way to verify
this state, is to do ATD112
• If the PLMN is unknown (meaning not present in the ROM table (see +COPN
command), not present in FLASH (see +WOLM command), and also not
present in SIM (E-ONS, ONS...)), the returned long name is formatted like "MCC
XXX MNC YY(Y)" and the returned short name is formatted like "XXX YY(Y)"
where XXX is the MCC (3-digits) and YY(Y) is the MNC (2-digits or 3-digits).