This is a collection point for pointers to Interface Engineering and other nuts&bolts documents available on the web. These documents describe things like; how ADSI works, how the different Voice Message Waiting indicators are supposed to act, what 'Feature Group D' really is and so on.
Telco Engineering Information
It is all pretty heavy reading, but:
- AT&T Network Services Interfaces Testlab
- Canadian Telecom Information
- ANSI/TIA/EIA standards
- Cisco Telephony Signalling whitepaper library
- Voice Network Signaling and Control - a particularly good resource
Also the United Kingdom (GB) Public Switching Telephone Network Interopabillity Standards, courtesy of 'Anonymous'.
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