Automated master-slave connectivity dry loop isdn line

Details Automated master-slave connectivity dry loop isdn line Automated master-slave connectivity dry loop isdn line

H - Electricity

04

L

H04L 1/24 (2006.01) H04L 12/52 (2006.01)

Patent

CA 2254739

A BERT or a voice call ISDN communication dry loop path is automatically established between master and slave ISDN test sets by a connectivity routine that is executed with only minimal preliminary user/craftsperson participation, thereby facilitating use of the test set and minimizing the possibility of errors. Bit error rate testing is conducted by causing a prescribed master - slave message exchange sequence to be automatically executed in response to a user operating a BERT key from a test set menu. A dry loop voice communications path is established over a selected bearer channel in response to the user operating a HOOK key in a conventional POTS sense. A dedicated bearer channel master-slave signalling sequence is then automatically conducted without further user participation to establish the call, including the generation of ringing signals and turning on respective codecs at each master and slave device.

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