Rainbow Electronics FARGO MAESTRO 100 (with TCP_IP) - Manual (Page 158)

Serial Port Commands
Wavecom Ring Indicator Mode +WRIM
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WM_DEV_OAT_UGD_049 - 001 VOLUME 1 August 23, 2007
8.10.3 Parameters and Defined Values
<mode>: RI mode
0 up-down RI mode: no pulses are sent before unsolicited AT
response. Up-down signals are sent when receiving an
incoming call (default value).
1 pulse RI mode: an electrical pulse is sent on the Ring
Indicator signal ONLY for selected event and/or unsolicited AT
responses as specified in <events_bit_field>, in order to lose
no AT responses when client tasks are in sleep state.
When receiving incoming calls, electrical pulses are sent on
the RI signal. For incoming IP packet event, the electrical
pulse is sent just before sending a downloaded data packet
(GPRS or CSD) if the remote client tasks has dropped down
his RTS signal.
For unsolicited AT response, the electrical pulse is sent just
before sending an unsolicited AT response.
<events_bit_field>: events for ring indication
mandatory in pulse RI mode (<mode> = 1)
bit set to 0: message disabled
bit set to 1: message enabled
bit 0 incoming IP packet
bit 1 RING, +CRING, +CCWA, +CLIP
bit 2 +CMT, +CMTI, +CDS, +CDSI
bit 3 +CBM, +CBMI
bit 4 +CME ERROR: 13, +CCELL, +CCED, +WDDI
The unsolicited response "+CME ERROR: 13" is sent out only
when there is a SIM card problem.
bit 5 +CREG, +CIEV
bit 6 +WDCI
bit 7 +CCCM
bit 8 +CKEV
bit 9 +CSQ
bit 10 NO CARRIER
bit 11 +STCR, +STRIL, +STIN
bit 12 +WIND
bit 13 +CALA
bit 14 +WBCI,+WDIAGI