Well, if you hit your cell and don't hear tones, the SBX is not blocking that, there is something else going on. That is not the same as you calling them they answer and they push tones that you can't hear. I am pretty sure the SBX is passive about what audio comes over an incoming line...if the caller is generating a sound the SBX users should hear it.

Last edited by Derrick; 03/20/14 06:07 PM.
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"Old phone guys never die, they just get locked in some closet with an old phone system and forgotten about"

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