624 Matrix ETERNITY NE System Manual
Auto Redial
The Auto Redial feature retries a call automatically if the dialed number is busy. It repeatedly checks the busy line
till it is free. When the called number is no longer busy, the extension of the caller rings.
Auto Redial saves time and the effort of repeatedly dialing the entire phone number over and over until the called
party gets off the phone.
The Auto Redial feature is supported for external numbers only. Maximum 50 Auto Redials can be set by the
extension users.
How it works
When an extension user dials a number and gets a busy tone, s/he may set Auto Redial. When Auto Redial is set,
• SARVAM UCS checks for a free trunk to dial the number.
• SARVAM UCS will dial out the requested number and will wait until the 'Auto Redial-Ring Back Tone Wait
Timer
101
expires to sense the Ring Back Tone from the requested number. This timer is programmable
and is set to 60 seconds as default.
• If the system does not detect Ring Back Tone for 60 seconds, it releases the trunk and tries again after
some time. If the system detects a busy tone, it releases the trunk and redials the number automatically
after some time. This process is repeated until the system detects the Ring Back Tone.
• When the SARVAM UCS detects the Ring Back Tone instead of the Busy Tone, it will ring on the
extension that set Auto Redial. The extension will ring for the duration of the 'Auto Redial-Ring Timer
102
.
This timer is programmable and is set to 45 seconds (default).
• The extension must go OFF-Hook to get connected to the remote party.
• If the extension is in the middle of any activity such as dialing, ringing or speech, the SARVAM UCS will
suspend Auto Redial until the extension becomes idle again. After which it dials the requested number
again.
Two types of Auto Redial are supported by the SARVAM UCS - Auto Redial (normal) and Auto Redial 'Priority' -
that differ from each other in terms of the number of redial attempts and the interval between attempts.
• Auto Redial (normal): The system is configured by default to make 5 attempts to redial at an interval of 45
seconds (default) between each attempt. Both, the number of attempts as well as the duration of the
interval can be changed to match the user preference, e.g.: decreasing the number of attempts to 3 and
increasing the interval to 60 seconds.
• Auto Redial Priority: The system makes a greater number of attempts to redial and the duration of the
interval between each attempt is less. By default, the system is configured to make 20 redial attempts at
intervals of 20 seconds. The number of attempts as well as duration of the interval are configurable, e.g.:
number of attempts can be set to 30 and the interval to 15 seconds.
101. Time for which SARVAM UCS waits to sense the RBT from the PSTN/CO Network after dialing the requested number. This timer
is particularly relevant to CO ports. Valid range of the timer: 000 to 255 seconds. Default: 060 seconds.
102. Time for which the extension that has requested Auto Redial should ring. Valid range of the timer: 000 to 255 seconds. Default:
045 seconds.
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