Installation Guide
Table Of Contents
- 1 Product Overview
- 2 Communication
- 3 Hardware Overview
- 4 Routing guidelines
- 5 Production Guideline
- 6 Packaging – Tape and Reel Information
- 7 SW integration
- 8 Operational and Regulatory information
- 9 Environmental Declaration
- 10 Terminology and Abbreviations
C5621 and C33 User Guide
1/1553-KRD 131 24 Uen Rev D 2011-11-22
Ericsson AB 2011
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Ericsson Confidential
Table 2 Connection state settings
Name Type Description
AllowAutoConnectAfterSleep REG_DWORD
0: Never autoconnect after sleep, regardless of
previous state
1: Allow reconnection, if previously connected.
AutoConnectStartup REG_DWORD
0: Do not automatically connect after boot.
1: Automatically connect after boot.
DisableAutoConnect REG_DWORD
0: Does nothing
1: Never autoconnect
7.5.2 TCP/IP Configuration
As part of installation in Windows XP, the following registry settings are made
in order to optimize the throughput for WWAN devices.
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters]
Table 3 TCP/IP Optimization
Name Type Value
TcpWindowSize REG_DWORD 0x40290
Tcp1323Opts REG_DWORD 0x1
Note: Setting Tcp1323Opts="0x3" and thus enabling Timestamp might help in some
cases where there is increased packet loss. However, generally better
throughput is achieved with Tcp1323Opts="0x1", since Timestamps add 12
bytes to the header of each IP packet.