R2511-HP MSR Router Series Voice Configuration Guide(V5)

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Step Command Remarks
5. Configure the time for CID check and
after the CID check, the number of rings
the FXO line receives before going
off-hook.
cid ring { 0 | 1 | 2 } [ times ]
Optional.
By default, CID check is
performed between the first and
the second rings and the FXO
line goes off-hook as soon as
the check completes, that is, cid
ring 1 0.
Configuring busy tone detection
This section describes how to configure busy tone detection for FXO voice subscriber lines.
Configuring busy tone detection parameters for the FXO voice subscriber line
The actual specifications of busy tones might differ from the configured parameters. If this is the case,
busy tones cannot be recognized, resulting in failed or false on-hook.
To configure the busy tone detection parameters for the FXO voice subscriber line:
Step Command Remarks
1. Enter system view.
System-view N/A
2. Enter voice view.
voice-setup N/A
3. Configure busy tone detection
parameters.
vi-card busy-tone-detect { auto
index line-number | custom
area-number index argu f1 f2 p1
p2 p3 p4 p5 p6 p7 }
Optional.
The system can record four busy
tones which are identified by the
index argument.
4. Configure the type of busy
tone.
area { custom | europe |
north-america }
Optional.
By default, the busy tone compliant
with the European standard is
used.
Once you execute this command,
the configuration will be applied to
all FXO voice cards on the device.
5. Quit voice view.
quit N/A
6. Enter FXO voice subscriber
line view.
subscriber-line line-number N/A
7. Configure the number of busy
tone periods for detection.
busytone-t-th time-threshold
Optional.
The default is 2.
You can increase the number of
busy tone detection periods by
using the busytone-t-th command
to improve the busy tone detection
accuracy. This reduces the
likelihood of false on-hook, but
increases the likelihood of failed
on-hook.