Modems Compatible With Ascendis Caller ID

Unfortunately, the sheer number of modems available prevents us from being able to track general compatibility.  However, there are some modems that are known to work successfully with Ascendis Caller ID.  These are listed below.

In theory any modem with Type I caller id support and proper Windows drivers should work.  In practice, it's often difficult to determine whether a given modem includes Type I caller id support.  In addition, many modems with Type I caller id support do not include caller id support in their drivers.  Sometimes a new driver can be downloaded from the modem manufacturer.  Note that modems that claim support for Type II caller id, call waiting id, or off hook caller id will not work with Ascendis Caller ID unless they also include Type I caller id support.  Many modems include Type II caller id support but not Type I, because Type II is cheaper.

To further complicate matters, many modems respond affirmatively to commands to enable caller id, even though they don't actually support it.  We recommend buying your modem from a store that allows exchanges or returns without a restocking fee so you can return it if it doesn't work as expected.


Recommendations

In general, we prefer hardware controller-based modems over winmodems or softmodems.  While winmodems are cheaper, they require more computer resources and are prone to the same software compatibility issues as all programs and drivers on your computer.

Zoom 3095 (External USB Modem)
NOTE: We recommend this modem for use in the U.S.A. only; some users in Canada and the U.K. have had problems, and Zoom acknowledges some problems in other countries. They are working to resolve the problems, but the issues remain as of December 18, 2009.

We have tested and recommend the Zoom external USB modem, model 3095, for use in the U.S.A.  This is a small external modem that plugs into a USB port and requires no other power supply.

NOTE: This modem does not support sound in Windows 10 in TAPI mode, but it does work in Ascendis Caller ID in direct mode in versions 3.1.0.0 and later.

NOTE: Due to an apparent Microsoft bug, voice support does not currently work in Windows Vista or Windows 7 in TAPI mode, but it does work in Ascendis Caller ID in direct mode in versions 2.3.0.0 and later.  Voice support works fine in Windows XP with or without TAPI.

Details on this modem can be found on Zoom's web site.

NOTE: As of December 8, 2009, the Windows 7 drivers on Zoom's website properly configure caller id.  (In other words, they work as expected.)  If you're using an older driver, either upgrade the driver or use the Repair Modem feature in Ascendis Caller ID or access the modem in serial mode.  (Vista 64 and Windows 7 64 users must use Ascendis Caller ID version 2.2.0.0 or later in order to repair the modem.)

We have performed limited testing of two Zoom 3095 USB modems connected to the same computer. In this configuration both modems correctly report caller information. Please note the following:
  • If you're having trouble getting Ascendis Caller ID to open both modems, try rebuilding the devices list
  • Windows may rename and/or change the COM port for one or both modems when the computer is restarted or the modems are unplugged and plugged in
  • You will probably have to repair the second modem when first installed, even if the first was repaired, when using TAPI mode
  • Bypassing TAPI may avoid the open issue, and certainly makes repair unnecessary
  • We did not test voice support in this configuration
Zoom Modem Model 3095


Zoom 3049C (External Serial Modem)
We have tested and recommend the Zoom external serial modem, model 3049C.  This is an external modem that requires a serial port to connect to the computer.  External modems are easier to install than internal modems, and they usually provide status lights, as does this one.

The "C" at the end of the model number indicates a Conexant chipset.  When purchasing this modem, look for the "C", or the extended model number "3049-00-00C" to ensure you get the right model.  Other models with other chipsets may perform differently.

This modem is supposed to support caller id in the following countries and regions: Austria, Canada, China, Denmark, Finland, France, Germany, Hong Kong, India, Japan, Singapore, Taiwan, U.K., and U.S.A. (Source: Zoom technical support, January 25, 2005)  However, Ascendis Software has only tested this modem in the U.S.A. and has not received confirmations of successful use in any other country.  Two U.K. users (one with phone service from BT) could not get it to report caller information.

Details on this modem can be found on Zoom's web site.

Note that voice support does not work via TAPI in Windows Vista or Windows 7, and drivers for Vista 64 and Windows 7 are not available.  Nonetheless, the modem works well with Ascendis Caller ID in both 32 and 64 bit Windows Vista and Windows 7.  To use in Vista 64 or Windows 7, install the modem as a standard modem and tell Ascendis Caller ID to bypass TAPI.  In this configuration, voice support works in Ascendis Caller ID version 2.3.0.0 and greater.

We have successfully used two Zoom 3049C external serial modems connected to the same computer. In this configuration both modems correctly report caller information.
Zoom Modem Model 3049


Internal PCI Modem -- no recommendation at this time
At this time we do not have a recommendation for an internal modem.   The models we've had consistent success with are old, and not currently sold.

You may be able to find one of the models listed below.
Internal Modem


Known Compatible Modems (alphabetically by manufacturer)

The following modems have been tested by Ascendis Software or reported as compatible by users of Ascendis Caller ID:
Manufacturer Model Style Controller Operating System(s) Reported Date Notes
AGPtEK USB 56K Voice Fax Data External V.90 V.92 Modem With Dual Ports External USB Unknown Windows 10 64-bit September 19, 2016
  • Customer reported "works great with Ascendis Caller ID", and that it's much less expensive than the Zoom 3095.
  • Available at Amazon.com.
Best Data 56K USB Data Fax Modem #56USBP External USB Partial Hardware? Windows XP SP2 January 25, 2005
  • Cannot coexist with Conexant HSF V92 56K Data Fax PCI Modem (or presumably any Conexant winmodem?)
  • Installer caused spurious reboot; tech support sent a beta driver that worked
  • August 17, 2015: It appears that Diamond Multimedia bought Best Data's modem business, although they don't list this modem on their web site.
Conexant D850 PCI V.92 Modem (D850 56K V.9x DFVc Modem) Internal PCI Software Windows Vista 64-bit September 2, 2008
  • Modem is available in some Dell PCs
  • Modem does not support voice
Conexant HDA D330 MDC V.92 Modem Internal Software Windows Vista 32-bit September 2, 2008
  • Modem is available in some Dell laptops
  • Modem does not support voice
Conexant HSF V92 56K Data Fax PCI Modem Internal PCI Software w/DSP Windows XP June 24, 2003
Conexant SmartHSFi V92 56K Speakerphone PCI Modem Internal PCI Software w/DSP Windows XP June 6, 2003
HiRO H50113 External USB Software Windows XP April 23, 2010
  • Works using TAPI with ACID version 2.3.0.0, including PhoneSound and Hangup.
  • Tested with HiRO Windows XP drivers 2.1.70.0 (as reported in Windows' modem properties) from HiRO's driver page. You will need to use ACID's Repair Modem feature (on the Help menu, under Diagnostics) to make the modem work in TAPI mode.
  • Works in TAPI-bypass (aka serial) mode, although voice quality is poor. The modem claims to support raw caller id, but only reports normal caller id.
HiRO H50113 External USB Software Windows Vista 32-bit April 23, 2010
HiRO H50113 External USB Software Windows Vista 64-bit April 23, 2010
HiRO H50228 External USB Unknown Windows 8.1
Windows 10
October 5, 2016
  • From customer: "True plug-n-play, works seamlessly with Ascendis. I plugged two modems in with no problems!! Caller ID works without incident."
  • From manufacturer: "Truly Plug n Play Driverless Installation Built in Driver Windows 10 8.1 8 7 32-bit 64-bit"
Jaton WinCOMM V.92 Internal PCI Software w/DSP Windows 2000
Windows XP
May 14, 2005
June 10, 2005
MultiTech Systems MT5634ZPX-PCI Internal PCI Hardware Windows Vista September 14, 2010
Netcomm AM5055 Roadster V.92 USB External USB Unknown Windows XP April 29, 2004
Pace Pace 56 Voice for Mac External Serial Hardware Windows XP September 16, 2005
  • Tested in U.K. (Peterborough, Cambridgeshire) with BT
  • Modem was made for Mac but works in Windows XP
  • Purchased from C J E Micros Tel: 01903 523222 http://www.cjemicros.co.uk
PCTel HSP56 MicroModem Internal PCI Software Windows XP April 3, 2004
  • Required PCTel modem driver from Conexant site in order to report caller information
  • During testing missed caller information at least once
Rosewill RNX-56AG Internal PCI Software not reported October 31, 2011
TRENDnet TFM-PCIV92I 56K (V.92) High Speed Internal PCI Data/Fax/Voice Modem Internal PCI Software Windows XP
Windows 2000
Windows XP SP2
May 17, 2004
February 18, 2005
April 26, 2005
  • "This modem can be picked up for around USD 11, and all I did was shut down the machine, plug it in, WinXP found the modem and installed the drivers automatically. I opened your program and walla, it just works. I'm very impressed."
  • http://www.trendnet.com/products/TFM-PCIV92I.htm
  • Note: Be sure to get the one with the "I" at the end of the model number. They also sell one without the "I" that does not include caller id support. TFM-PCIV92I is good, TFM-PCIV92 is not.
  • This modem reports Private and Out of Area calls incorrectly in Australia, and possibly other non-U.S.A. locations. In the U.S.A., it appears to work fine. (7/05/2004)
  • No longer available (5/14/2005)
U.S. Robotics 33.6K Voice INT Internal ISA Hardware Windows 2000 March 9, 2004
U.S. Robotics 56K FAX INT
(board model #0460)
Internal ISA Hardware Windows 2000 March 9, 2004
U.S. Robotics Courier V.Everything Ext PnP (v.90 & X2)
External Serial Hardware Windows 2000 February 16, 2006 "no voice but works fine"
U.S. Robotics USR5610B
Internal PCI Hardware Windows XP April 13, 2004 "[Used with Ascendis Caller ID] for about a year now. It has worked flawlessly. I also have USR's "Modem on Hold" software running."
U.S. Robotics USR5686E
External Serial Hardware Windows 2000 May 24, 2005
  • Used driver on modem CD, but did not install any included software
  • No voice support
  • Occasionally reports call when no call is coming in (common for USR modems)
Zoom 3025C Internal PCI On-board DSP Windows XP August 4, 2003
  • One user reported missing caller information on some calls
  • The "C" at the end of the model number indicates the chipset and is important!
Zoom 3049C External Serial Hardware Windows XP, Windows 2000, Windows 98 July 2, 2009
  • Supplied software may not work with dual-processor machines (including machines with HyperThreading enabled) or Windows Server 2003. Contact Zoom technical support for an alternative, limited function driver that will work with Ascendis Caller ID.
  • The "C" at the end of the model number indicates the chipset and is important!
  • Some users have reported that this modem does not work in the U.K.
  • Vista 32-bit drivers are available; Vista 64-bit drivers are not available.
  • Voice support does not work in Vista (with or without TAPI)
  • This modem works without Zoom drivers for caller id detection, but not for voice. Just install as a Standard 56000 bps Modem, and tell Ascendis Caller ID to bypass TAPI.
Zoom 3095 External USB Hardware Windows XP April 23, 2010
  • The drivers do not specify the caller id commands, so you will need to use the Repair Modem command, or bypass TAPI.
  • Voice support works well with or without TAPI in Ascendis Caller ID version 2.3.0.0 or later.
  • NOTE: We recommend this modem for use in the U.S.A. only; some users in Canada and the U.K. have had problems, and Zoom acknowledges some problems in other countries. They are working to resolve the problems, but the issues remain as of December 18, 2009.
  • July 2, 2012: A user in Canada reported that this modem is working correctly in TAPI mode on Windows 7 with Bell Canada phone service. He had to use the Repair Modem command and rebuild the devices list. Rebuilding the devices list should not be necessary for most users.
Zoom 3095 External USB Hardware Windows Vista 32-bit
Windows Vista 64-bit
April 23, 2010
  • The drivers do not specify the caller id commands, so you will need to use the Repair Modem command, or bypass TAPI.
  • Voice support does not work in Vista in TAPI mode.  This is apparently a common problem with Conexant-based modems in Vista, and appears to be a Microsoft problem.  Voice support does work in Ascendis Caller ID in serial mode in Ascendis Caller ID version 2.3.0.0 or later.
  • NOTE: We recommend this modem for use in the U.S.A. only; some users in Canada and the U.K. have had problems, and Zoom acknowledges some problems in other countries. They are working to resolve the problems, but the issues remain as of December 18, 2009.
  • July 2, 2012: A user in Canada reported that this modem is working correctly in TAPI mode on Windows 7 with Bell Canada phone service. He had to use the Repair Modem command and rebuild the devices list. Rebuilding the devices list should not be necessary for most users.
Zoom 3095 External USB Hardware Windows 7 April 23, 2010
  • The Windows 7 drivers on Zoom's website properly configure caller id.  (In other words, they work as expected.)
  • Voice support does not work in Windows 7 in TAPI mode.  This is apparently a common problem with Conexant-based modems in Windows 7, and appears to be a Microsoft problem.  Voice support does work in Ascendis Caller ID in serial mode in Ascendis Caller ID version 2.3.0.0 or later.
  • NOTE: We recommend this modem for use in the U.S.A. only; some users in Canada and the U.K. have had problems, and Zoom acknowledges some problems in other countries. They are working to resolve the problems, but the issues remain as of December 18, 2009.
  • July 2, 2012: A user in Canada reported that this modem is working correctly in TAPI mode with Bell Canada phone service. He had to use the Repair Modem command and rebuild the devices list. Rebuilding the devices list should not be necessary for most users.
Zoom 3095 External USB Hardware Windows 8.1 March 17, 2016
  • Voice support does not work in Windows 10 in TAPI mode,  but it does work in Ascendis Caller ID in serial mode in Ascendis Caller ID version 3.1.0.0 or later.
  • NOTE: We recommend this modem for use in the U.S.A. only; some users in Canada and the U.K. have had problems, and Zoom acknowledges some problems in other countries.
Zoom 3095 External USB Hardware Windows 10 March 17, 2016
  • Voice support does not work in Windows 10 in TAPI mode.  Zoom claims the driver does not support sound capability, so this is expected. Voice support does work in Ascendis Caller ID in serial mode in Ascendis Caller ID version 3.1.0.0 or later.
  • NOTE: We recommend this modem for use in the U.S.A. only; some users in Canada and the U.K. have had problems, and Zoom acknowledges some problems in other countries.


Known Incompatible Modems (alphabetically by manufacturer)

The following modems have been tested or evaluated by Ascendis Software or reported as not compatible by users of Ascendis Caller ID:
Manufacturer Model Style Controller Operating System(s) Reported Date Notes
Conexant HCF V90 with TAM/Speakerphone
CX06834-11 Chipset
Internal PCI Host-based N/A November 29, 2005 Reported by user in U.K.
Creative Labs Modem Blaster V.92 Serial #DE5621 External Serial Hardware N/A January 26, 2005 Does not support caller id according to their technical support
HiRO H50113 External USB Software Windows 7 April 23, 2010
Rosewill RNX-56USB External USB Hardware Windows Vista 64 April 27, 2011 Serial number 25164005031101496
U.S. Robotics 33.6K FAX INT PnP
(UPC 0008400153600725)
Internal ISA Unknown Windows 98 SE March 10, 2004
U.S. Robotics 3Com Windows Modem ISA ADI
(board model #0613)
Internal ISA Unknown Windows 2000 April 3, 2004
U.S. Robotics 3Com Windows Modem TI
(board model #0478)
Internal ISA Unknown Windows 2000 April 3, 2004
U.S. Robotics 56K V.92 PCI Faxmodem
(model #USR5670)
Internal PCI Unknown Windows 7 September 26, 2010
  • Anonymous report
  • US Robotics claims modem supports Type 2 caller ID only, which means it won't work with Ascendis Caller ID regardless of the operating system.
U.S. Robotics 56K PCI Faxmodem
(model #USR5661B (USR805661B))
Internal PCI Unknown Unknown March 9, 2009 Anonymous report
U.S. Robotics 56K V.92 PCI Faxmodem
(model #USR5660A)
Internal PCI Software N/A December 17, 2004
Zoom 3025L Internal PCI On-board DSP N/A April 6, 2004 Uses Agere chipset
Zoom 3025N Internal PCI On-board DSP Windows Server 2003, Windows XP April 6, 2004 Uses Agere chipset

Multiple Modems

If you intend to put multiple modems in a single computer for multi-line support, you should be aware of potential problems, especially with software-based modems. Please see our forum postings on this topic.

Our modem recommendations include external serial and external USB modems that we have successfully used for multi-line setups.