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TO: All CDMA2000 Operators, Vendors and Service Providers

URGENT Notice on Hardware Identifiers for Multiple-Technology Devices

Recently, CDG has learned that there is confusion in the industry regarding hardware identifiers for multi-technology devices including CDMA2000 devices that have one or more 3GPP modes of operation. In some cases, networks have been found to reject the ID numbers of multi-technology devices even though the devices are properly programmed.

The attached memo describes the range of values that are valid for multi-technology devices and lists the Numbering Administrators who are currently providing numbering assignments. It is important that operators and network vendors support the full range of identifiers in order to provide service to all devices, including in-bound roamers.

If you have any questions, please contact David Crowe (dcrowe@cdg.org).

Sincerely,

CDG