Nortel Networks RTU-292 Operations Manual, Local Phone Option Operation, DTMF Command Function

RTU-292 Operations Manual

7.3.2 LOCAL PHONE OPTION OPERATION

When the handset of the local phone is picked up, a special dial tone, generated by the RTU- 292, will be heard in its receiver. The user then has three options:

Table 7-5Local Phone DTMF Commands

DTMF Command Function

0Place a call to the RTU-292 Operator

1Connect radio audio to the local phone

9 Place telephone calls to the outside PSTN line

Once the local phone user has selected a function and entered the associated DTMF character, he may use any of the keypad commands that are available to a PSTN caller in the command mode (see Table 3-1). It is important to note that the local phone audio into the RTU-292 does not run through the unit's DSP circuitry and therefore cannot activate the VOX function. Always de-activate the VOX function and use the manual key/unkey commands when communicating over a radio via the local phone (see telephone commands in 3.7.3.4).

Figure 7-2 Local Phone Option Installation

7-5 JPS Communications, Inc.