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Fig. 14.3 is an example of a one-piece hand-held mobile phone.
Some newer cellular models, particularly the hand-held ones, have an audio jack
that can connect the cellular phone's audio input/output to an outside headphone-
microphone set. A simple adapter cable can be used to connect the RJ11 modem's
2-wire interface to this cellular phone's audio jack. In this case, you need to manu-
ally dial or answer a call using the cellular phone to establish a phone connection
and then manually make the modem go on-line using the ATD or ATA command.
Office Installation
Naturally, you can install the U-1496P in an office installation, just like all the oth-
er ZyXEL models.
Fig. 14.3: Example 3 - U-1496P with a hand-held phone
Fig. 14.4: Example 4 - U-1496P in an office installation