Instruction manual

Analog Modems
1-4 296-1011-220 Rel. 4.1, Doc. Rev. 07.02
CVX Multi-Service Access Switch 4.1 Release Notes
Analog Modems
Analog Modems Supported by the CVX Switch
The CVX switch host digital modems support all known analog modem
technologies. All versions of host digital modem software are tested for
connection reliability, call longevity, and compatibility with various consumer
modem technologies that lie beneath retail brand names and model numbers. Tests
include representative retail samples of modem technologies offered by OEMs of
Conexant Systems, Lucent Technologies, Texas Instruments, Analog Devices,
Intel, Motorola, ESS Technology, PCTel, and others.
The CVX switch host digital modems are in compliance with all applicable ITU
standards and recommendations.
In our testing however, we find that the supported consumer devices listed below
do not meet our minimum standards for satisfactory connectivity. Compatibility
and performance may improve with updated consumer modem software that now
exists or will be issued in the future by the manufacturer, and users of these
devices should upgrade as soon new software is available:
• V.90 Internal PCI-bus “winmodems” based on Lucent Technologies that are
running under software versions earlier than version 5.49 tend to suffer from
excessive failures to connect and unwanted disconnects. These issues were
cleared with Lucent's 5.49 release. At the time of this report, the most recent
Lucent version is 5.97. All users should update their modem software.
• V.90 Internal PCI-bus “winmodems” based on Conexant Systems HCF
technologies running software versions earlier than version 2.1.2.161 tend to
experience failures to connect and unwanted disconnects in excess of our
minimum standards for satisfactory connectivity. All users should update their
modem software.
• V.90 Internal PCI-bus softmodems based on Intel (Cirrus Logic) technology
running software versions of 1.024 or earlier tend to experience failures to
connect and unwanted disconnects that exceed our minimum standards. All
users should update their modem software.