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Microsoft Windows Logo Program System and Device Requirements  —  119

B6.1.4.8 Analog V.90 modem tested in conjunction with digital V.90 modems commonly deployed by ISPs

Modem can connect, stay connected, and successfully transfer data simultaneously

This requirement states a basic criterion for modem functionality. While operating in the default modem configuration on TIA-3800 line I01d-loop 3, the modems must be able to transfer a typical file in 40 minutes or less, simultaneously in both directions, without hanging up or otherwise aborting the transfer. Data transmission is required to be run directly on the modems without the use of an additional protocol such as Zmodem.

B6. If impairment combination 2C4 is implemented, complies with ITU-T Recommendation V.56 bis.

The analog V.90 modem subject to this requirement must meet it when connected to digital V.90 modems commonly deployed by Internet service providers (ISPs). For modems certified for operation only in countries outside of North America, the requirement is for operation on impairment combination 2C4, as specified in International Telecommunication Union – Telecommunication Standardization Sector (ITU-T) Recommendation V.56 bis. V.56 bis. specifies that the modem must be connected to an identical analog modem, rather than a digital V.90 modem.

Telecommunications Industry Association (TIA) TSB-38 provides detailed test procedures and criteria.

B6. Modem must be able to repeatedly connect

This requirement must be met with an overall call completion success ratio of 97 percent with a minimum of 50 iterations, and without the modem stalling in an unresponsive, inoperable state.

B6. Modem pair must be able to sustain the connection for at least 30 minutes

At no less than 90 percent of the initial connection rate, with no more than 1 retrain, using the same TSB-3800 line I01d-loop 3 specified for use under B6.1.4.

B6. E-mail: Support E-Mail: POP3
B6. Web browsing: Internet Explorer or Netscape Navigator
B6. Video teleconferencing using H.323

For example, using Microsoft NetMeeting®.

B6.1.4.9 Telephony applications meet communication and performance requirements
B6. System with telephony applications uses a common set of audio I/O devices for system audio and telephony applications

If the system enables telephony applications such as speakerphone, IP telephone, and so on, then for each type of audio I/O device, the same device must be usable for both system audio and telephony. For example, the same set of speakers must be usable for both system audio and speakerphone functions. When using a headset, users must not need to change plug locations when switching from, for example, listening to CD-audio to speaking on the phone.

This requirement ensures that one convenient, unambiguous I/O connector is provided for each type of audio I/O device. It does not mandate that all audio I/O is delivered to a single I/O device at all times. For example, providing system audio sounds to the speakers while simultaneously using a headset for IP telephony would not be prohibited.

© 1999-2002 Microsoft Corporation. All rights reserved.

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