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Operational Practices

OP 38 – ISDN Codec Equipment used for Communications Channels – Issue 1 – September 2000

By August 16, 2019April 9th, 2025No Comments

OP 38 – ISDN Codec Equipment used for Communications Channels – Issue 1 – September 2000

https://www.freetv.com.au/wp-content/uploads/2023/07/OP38-ISDN-Codec-Equipment-Used-for-Communications-Channels-Issue-1.pdf