NEN EN 301061-4-1999 标准详情
- 标准号：NEN EN 301061-4-1999
- 中文标题：
- 英文标题：Isdn - Digital Subscriber Signalling Systems No. One (dss1) Protocol - Generic Function Protocol For The Support Of Supplementary Services At The "b" Service Entry Point For Virtual Private Network (vpn) Applications - Part 4: Abstract Test Suite (
- 标准类别：荷兰国家标准NEN
- 发布日期：
