OTA卡就是增强型的UIM卡，能提供更多的增值业务。 -OTA card is enhanced UIM card, can provide more value-added services. OTA card is enhanced UIM card, can provide more value-added services.

中国电信CDMA卡需求规范－UIM卡分册(20081121).pdf-China Telecom' s CDMA card requirements specification-UIM card Volume (20081121). Pdf

uim卡规范的基本资料。通信方面、硬件方面的文档-Specifications of uim