LVAD360 发表于 2025-3-30 10:29:44

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密切关系 发表于 2025-3-30 14:38:42

https://doi.org/10.1007/978-3-030-99217-0ns to one another as well as to source coding as they might be found in a generalized digital transmission system. Signaling and supervision are covered next, followed by monitoring and digital speech interpolation.
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查看完整版本: Titlebook: Digital Telephony and Network Integration; Bernhard E. Keiser,Eugene Strange Book 1985 Springer Science+Business Media New York 1985 ISDN.