Tuesday, January 6, 2009

ISDX Multi line telephones

Hey, the first post for the new year. Late last year I was involved with the installation of a voice logger on a Realitis DX PABX. The client wanted to be able to monitor the extensions via a standard "Plan 10". Despite the fact that the multiline seems to have a digital display, it is actually a hybrid. All speech is carried in standard analog protocol, only the DTMF and screen updates use a digital signal superimposed on the standard analog signal. Hence, if the voice logger can monitor standard analog telephones, multilines will also be supported. However, use "Voice Activation" as the off-hook signal may be insufficient to activate voice logging.

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