User guide

4. Incoming Connections
The EZURiO device can be configured using the AT+BTP or AT+BTG command so that it will scan
for incoming connections from other Bluetooth devices. It can also be configured via S Register
512 to be in this mode by default on power up.
When the lower layers detect an incoming call, a RING 123456789012 string is sent to the host
every second. The command ATA is used to accept the connection and ATH to reject it.
On connection, if the S0 Register is >=0 then confirmation to the host is in the form:-
CONNECT 123456789012
CONNECT 123456789012 A
CONNECT 123456789012 E
CONNECT 123456789012 AE
Where ‘A’ means authenticated connection and ‘E’ means encryption has been enabled.
When S0 register is -1, neither RING nor CONNECT is sent to the host and the connection is
silently accepted.
If the S 100 register is non-zero, then after the ring indications specified by this register have
been sent to the host, and the host has failed to accept or reject the incoming connection, then an
automatic ‘hangup’ is initiated.
DSH_50003_v1v3 AT Command Reference 27 of 33