Description
Specifies the requirements necessary for correct interworking with the analogue interfaces of the PSTN. Does not apply to PBXs for connection to shared service lines or 1 + 1 carrier systems, or to PBXs for connection in parallel with any other apparatus whose ringer equivalence number exceeds 0.3.
All current amendments available at time of purchase are included with the purchase of this document.
Product Details
- Published:
- 09/01/1988
- ISBN(s):
- 0580135853
- Number of Pages:
- 27
- File Size:
- 1 file
- Product Code(s):
- 10134103, 10134103, 10134103
- Note:
- This product is unavailable in Ukraine, Russia, Belarus
