Intel 537EX - Manual (Page 32)

32 536EX Chipset Developer’s Manual
Intel Confidential
Data Mode AT COMMANDS
Figure 4. Modem-on-Hold: Incoming Voice Call in Data Mode
A9111-01
HW Ring Indication
(+++AT)
Stay Online
(ATO)
Go Back Online
(ATO)
Reject Call
Incoming Call
Accept Call
No (Returns 0)
End Data Connection
(ATH)
Yes
Yes
(Returns 1-13)
Enable Caller ID
(Optional)
(+VCID=1)
Enable MOH
(+PMH=0)
(+PCW=0)
Request to go
on hold
(+PMHR)
Flash Hook
(+PMHF)
Flash Hook
(+PMHF)
Answer Call
Finish Call
Disconnect
?
No
Accept/Reject
Call
?
Server
Accepts
Request
?