56K Modem Comparison

Product Name Courier® Lite 56K* Business Modem 56K* V.92 Serial Controller Faxmodem 56K* USB Controller Modem + Fax/Voice 56K* USB
Softmodem + Fax
56K* V.92 PCI
Express Faxmodem
56K* V.92 Internal
PCI Modem + Fax
V.92 Low Profile PCI Modem
Model

5686G-PRO

Discontinued

5630G

5637

Discontinued

5639 5638 5671 2981-OEM
Form Factor / Interface RS-232 RS-232 USB USB PCIe 1.1 PCI 2.2 Low Profile PCI, PCI
Internal / External EXT EXT EXT EXT INT INT INT
Pack Quantities single units single units single units single units single units single units 5 units
Windows Operating System

NOTE: both 64 and 32 bit systems supported unless otherwise noted

2019

2016

Win 10

2012 R2

2012

Win 8

2011

Win 7

2008

Vista

2003

XP

2K

Me

NT

98

95

Win 11

2019

2016

Win 10

2012 R2

2012

Win 8

2011

Win 7

2008

Vista

2003

XP

2K

Me

NT

98

95

2019

2016

Win 10‡

2012 R2

2012

Win 8

2011

Win 7

2008

Vista

2003

XP

2K

Me

NT

98

95

Win 11

2019

2016

Win 10

2012 R2

2012

Win 8

2011

Win 7

2008

Vista

2003

XP

2K

Me

NT

98

95

Win 11

2019

2016

Win 10

2012 R2

2012

Win 8

2011

Win 7

2008

Vista

2003

XP

2K

Me

NT

98

95

Win 11

2016

Win 10

2012 R2

2012

Win 8

2011

Win 7

2008

Vista

2003

XP

2K

Me

NT

98

95

2016

2012

Win 8

2011

Win 7

2008

Vista

2003

XP

2K

Me

NT

98

95

Linux Operating System

NOTE: both 64 and 32 bit systems supported unless otherwise noted

Kernel 2.3 or higher

Kernel 2.3 or higher

Kernel 2.3 or higher

Kernel 2.3 or higher

Macintosh Operating System  

Mac OS X 10.4-10.11, 10.12‡

Plug and Play Yes Yes Yes Yes Yes Yes Yes
Global Approvals US, CA, EU, UK, Global US, CA, EU, UK, Israel US, CA, EU, UK, Global US, CA, EU, UK, Global US, CA, EU, UK, Global EU, UK EU, UK
Fax Capability
Voice  
Controller-Based
Hayes Compatible Yes Yes Yes Yes Yes Yes Yes
Unimodem TSP/TAPI Compliant Yes Yes Yes Yes Yes Yes Yes
Exclusive Line Probing
Remote Manageability
Carrier Loss Redial
Flash ROM Upgradeable
V.Everything® Technology            
V.22 Fast Connect
V.92 Technology Ready Ready Ready Ready Ready Ready Ready
Wake on Ring  
Online Call Notification§  
Caller ID Type 1
Caller ID Type 2
Modem on Hold**  
Value Add Software CD-ROM  

INT=Internal Modem, EXT=External Modem, XP=Windows XP, Me=Windows Me, NT=Windows NT 4.0, 2K=Windows 2000, 98=Windows 98, 95=Windows 95, 3.1=Windows 3.1, D=DOS, R=Ready, d=beta DOS drivers are available on our site, but we do not provide support for their use.

US=United States, CA=Canada, EU=European Union including Turkey, Norway, Switzerland, Liechtenstein and Iceland

† Global approvals are available for additional countries in Central America, South America, Asia and the Pacific Rim for certain models. Approvals vary by product and are listed individually. Country approvals may change at any time without notice.

‡ Limited product features: Voice functionality is no longer available in Windows 10. Fax features no longer supported in macOS Sierra Version 10.12.

*Capable of receiving downloads at up to 56 Kbps and sending at up to 31.2 Kbps. Actual download speeds you experience may be lower due to varying line conditions. Maximum download speeds in the U.S. and Canada are limited to 53K, due to regulatory limits on power output. Requires compatible analog phone line and server equipment.

§ In order to use Internet Call Notification (ICN) software, Caller ID and Call waiting services are required from your phone company.

** Modem on Hold requires all of the following: the telco supports type II Caller ID, the ISP supports V.92 with MOH enabled, and a compatible operating system as listed on the MOH page.