2N Lift8 v1.5.2 - Manual (Page 66)

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2N TELEKOMUNIKACE a.s., www.2n.cz
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In such cases, try some other equipment (a digital PBX, e.g.) or the machine room
telephone set. If the machine room or PSTN programming attempts fail too, you have
probably entered an invalid password.
Programming via Service Tool
Refer to the section (Section 5) for details. 2N Service Tool
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Caution
Experience shows that, especially recently, it is practically impossible to
recover the DTMF signal in GSM networks!