Technical information

Chapter 3: AT Commands Reference
August 5, 2008 AT Commands Reference Manual 3-483
+CGATT V gprs V V Yes
+CGQRE
Q
V gprs V Yes
+CRC V V V Yes PCHS
+CRING V V V Yes
RING -
CSD Call
(data/fax)
V csd V Yes
RING -
Voice Call
VYes
RING -
MT GPRS
Alert
Also not
supported
by the
network
No
D*99# V V gprs GPRS
External
Yes
D Voice
Call
VYes
D CSD
Call
V csd V Yes
Note:
• RING Alert: When the call type is unrecognized, it is considered as a voice call.
In such a case, RING will be sent to IDLC-2 only.
• When IDLC-1 (External modem) is active, no operation should be made in
IDLC-3 and IDLC-4. When IDLC-3 or IDLC-4 are active, no operation should
be made in IDLC-1.
• In the case of a 2-channel configuration (IDLC1 = External modem + GPRS +
CSD; IDLC2 = AT and VC), the IDLC-1 commands that are allowed comprises
the combination of the above DLC-1, IDLC-3 and IDLC-4 columns.
Table 3-304:
AT Commands Limitations for 4-Channel Configuration (Cont.)
IDLC-1 IDLC-2 IDLC-3 IDLC-4
Comment
PREMUX
Support
Profile
Definition
External
AT +
Voice Call
+ SMS