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Is your product on a PBX system?
If your product is on a PBX system, the PBX system might be generating a dial tone the product
cannot detect.
Disable the detect dial tone setting. See
Changing the detect dial tone setting
.
Is your product on a PBX system?
If your product is on a PBX system, the PBX system might be generating a dial tone the product
cannot detect.
Disable the detect dial tone setting. See
Changing the detect dial tone setting
.