Rhydo SIM 900 SIM 900 -TTL UART Especificaciones descargar pdf (Pagina 19)

SIM900 AT Commands Set

SIM900_ATC_V1.01 19 23.06.2010

the call is established. The setting is controlled by AT+COLP. Factory

default is AT+COLP=0, this cause the TA returns “OK” immediately

after dialing was completed, otherwise TA will returns “OK”,

“BUSY”, “NO DIAL TONE”, “NO CARRIER”.

Using ATD during an active voice call:

z When a user originates a second voice call while there is already an

active voice call, the first call will be automatically put on hold.

z The current states of all calls can be easily checked at any time by

using the AT+CLCC Command

2.2.4 ATD> <n> Originate Call to Phone Number in Current Memory

ATD><n> Originate Call to Phone Number in Current Memory

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Rhydo SIM 900 SIM 900 -TTL UART Especificaciones Pagina 19