User's Manual

does not key the portable again after receiving a system busy signal, a "talk permit" tone
will be transmitted to the portable as soon as a voice channel is available.
o The "talk prohibit" tone (a long, low tone) indicates to the portable user that the
mobile cannot access the trunking system.
For portable transmissions lasting longer than one second (as opposed to a "quick-key",
which must be less than one second), the VRS will respond with one of the following
tones. If the "Trunking Access Tones" option is disabled in the "VRS Options" screen of
the ASTRO mobile CPS, the "trunking access good tone" and the "trunking access bad
tone" will not be generated.
o The "trunking access good" tone (a single beep) indicates that a portable-to-base
transmission has occurred and the mobile remained keyed for the entire transmission.
o The "trunking access bad" tone (a single, low-pitched tone) indicates that all or
part of the portable-to-base transmission was not repeated or was interrupted during the
portable's valid PL transmission. This would handle, for example, the case of the mobile's
TOT expiring or the case where a "system busy" is received first, and then a "talk
permit," so that only part of the transmission could be repeated. This tone can also
indicate that the VRS has counted down in priority from a delay state of 2 or higher.
o The "talk prohibit" tone (a long, low tone) indicates to the portable user that the
mobile cannot access the trunking system.
o The "system busy" tone (a telephone-like busy tone) indicates that, at the time the
portable user dekeyed, the trunking system had no voice channel available. If the user
does not key the portable again after receiving a system busy signal, a "talk permit" tone
will be transmitted to the portable as soon as a voice channel is available.
Message/Status Acknowledgment Tones
There are four different tones that the portable user can receive at the end of a
message/status attempt:
o Message/Status Acknowledged Good Tone-This tone is generated by the mobile
when the message/status has been acknowledged by the base station. The VRS repeats
the tone to the portable.
o Message/Status Not Acknowledged Bad Tone-This tone is generated by the
mobile when the message/status has been transmitted but was not acknowledged by the
base station. The VRS repeats the tone to the portable.
o Message/Status Not Supported Conventional Bad Tone-This tone is generated by
the VRS when it receives a message from the mobile indicating that the message/status
number selected is not a valid message or status while the mobile is on a conventional
channel.
o Message/Status Not Supported Trunking Bad Tone-This tone is generated by the
VRS when it receives a message from the mobile indicating that the message/status
number selected is not a valid message or status while the mobile is on a trunking
channel.
VRS Test Mode
VRS can be put into test mode by placing the test mode jumper before system power-up.
If the VRS ?P detects this jumper placed during power-up, the following mode is entered:
o VRS TEST is displayed momentarily on the control head