Specifications

AirPrime UMTS / LTE MC/SL-Series Extended AT Command Reference
72 Proprietary and Confidential 2130616
!REL
Supporting chipsets:
• All
Note: Only the execution
operation (“=”) is password-
protected.
Note: The actual parameter
values or ranges used in the
query (=?) and execution (=)
forms of this command may
vary slightly from this
description depending on the
device and firmware revision
used.
Note: Devices should always
use the default value (1) for
<sgsnr> and <mscr>, and use
AT!NASREL to choose the
NAS Release Compliance
version (Release 5 or
Release 99).
Set/report active protocol/revision
Configure the modem to use specific protocol, SGSN, and MSC revisions, or indicate
the current settings.
Usage:
• Execution: AT!REL=<wcdmarrc> [,<sgsnr>, <mscr>]
Response:
OK
Purpose: Set the desired protocol (<wcdmarrc>), SGSN revision (<sgsnr>), and
MSC revision (<mscr>).
• Query: AT!REL?
Response:
!REL:
Protocol: Release 5
(from <wcdmarrc>)
SGSN Revision: Dynamic (from <sgsnr>)
MSC Revision: Dynamic (from <mscr>)
OK
Purpose: Report the current operating protocol, SGSN revision, and MSC
revision.
• Query List: AT!REL=?
Purpose: Return the command format (for !REL = ) and the supported values for
each parameter (the supported ranges depend on modem models—
see the parameter descriptions for details).
Parameters:
<wcdmarrc> (Protocol)
• Default value is the highest release supported by the device.
• Two-digit number corresponding to 3GPP release (!REL=? shows valid values)
• Example: 00 = Release 99
<sgsnr> (SGSN revision)
• Two-digit number corresponding to SGSN revision (!REL=? shows valid values)
• Example: 00 = Release 97
• nn = Dynamic—Uses the revision broadcast by the network
<mscr> (MSC revision)
• Two-digit number corresponding to MSC revision (!REL=? shows valid values)
• Example: 00 = Release 97
• nn = Dynamic—Uses the revision broadcast by the network
Table 3-2: Modem status, customization, and reset commands (Continued)
Command Description