GB/T 12197-1990 in English
ABOLISHEDMethods of measurement for pushbutton telephone with DTMF
- Issued on:1990-02-01
- Implemented on:1990-08-01
- File Format:PDF
- Delivery:Via email within 5 business days
Price(USD)：
$1,060.00
$1,029.00
$1,029.00
《GB/T 12197-1990双音多频式按键电话机测试方法》由339-2（工业和信息化部（通信））归口，主管部门为工业和信息化部（通信）。
本标准规定了与GB 9034《双音多频式按键电话机技术要求》相对应的测试方法。本标准适用于普通型双音多频式按键电话机（以下简称话机）。
Scope
This standard specifies the test methods corresponding to GB9034 "Technical Requirements for Dual-Tone Multi-Frequency Push-button Telephones". This standard applies to ordinary dual-tone multi-frequency push-button telephones (hereinafter referred to as telephones).
Sample only — not a preview of GB/T 12197-1990
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