User's Manual

55
www.lairdtech.com
Laird Technologies
BTM510/511
Bluetooth
®
Multimedia Module
Connection status Outcome of AT+HSB (“AT+CKPD=200”)
ACL connected (ATI63=1) Audio link will be initiated by AG
Referred to as “Audio Connection Transfer from AG to HS” in HSPv1.2
Audio connected (ATI63=2) Audio link and ACL should be released by the AG, actual outcome depends
on AG
Table 3.25: Outcome of “AT+HSB”
6.1.3 Release Connection from Headset
AT+HSH
Release connection from local Headset instance. Audio connection will be released if
existing, ACL will be released anyway.
A connection release, initiated by the Headset, is not dened in the Headset Prole
specication [4]. A prole compliant disconnection is initiated from Headset by sending
“AT+CKPD=200” (use “AT+HSB”) to the audio gateway.
This command was introduced for the sake of completeness and should be used for testing
purposes only.
Response:
On audio disconnection (optional): <cr,lf>HS”AU0”<cr,lf>
On ACL disconnection: <cr,lf>NO CARRIER 1108<cr,lf>
6.1.4 Headset status
ATI63
Returns the status of the Headset (HSP) instance:
0 = not connected
1 = ACL connected
2 = Audio connected
6.1.5 Headset asynchronous messages
CONNECT <bd_addr
hex
>,<uuid
hex
>[,<dir>]
An ACL connection to headset has been established.
<bd_addr
hex
> : Bluetooth address of headset device
<uuid
hex
> : “1108” if it was an incoming connection
: “1112” if it was an outgoing connection.
<dir> : “<”/”>”/”I”/”O”’ optionally indicates the direction (incoming/outgoing),
please refer to S331 and section 6, page 85.
HS”RING”
HS has received a “RING” indication from the connected audio gateway. HS is expected
to respond with “AT+CKPD=200” (see “AT+HSB”).
HS”AU1”
Audio connection (SCO) has been established (= “audio on”).
HS”AU0”
Audio connection (SCO) has been released (= “audio off”).
NO CARRIER 1108
ACL connection to local HS-instance has been released. Please note section 6, page 85.
AT COMMAND SET
REFERENCE