06-25-2013 09:29 AM - edited 03-16-2019 06:04 PM
Hello friends,
I have an issue I am hoping someone here can assist with regards to an analog elevator line.
We have an old analog elevator line that plugs into 4 port analog gateway in a router at a remote location.
When I dial the number, I get a normal busy signal. When I shut down the port and dial, I receive a fast busy. When I “no shut” the port. The line will ring. If I hang up, dial back, line is busy again. Sometimes, after 3-4 minutes, the line will ring again, other times it will continue to be busy till I do another port reset.
Any thoughts?
06-25-2013 10:47 AM
You need to find out how the device want disconnect supervision, and make that setting match under voice-port.
BTW you should have mentioned your voice system version and type, as well for the gateway, and its configuration.
06-25-2013 11:39 AM
I need to find out how the device want disconnect supervision? can someone please elaborate on what that means?
06-25-2013 11:47 AM
The device may need for disconnect tone in the right frequency, or power denial. You can use the search function for more information. You did not posted any of the details asked so it's impossible to say what you have now or help further.
06-25-2013 01:09 PM
Thank you for your response,
here is some config info,
Excerpt from show run command…
dial-peer voice 101 pots
destination-pattern 4556
port 0/0/2
output from show voice port 0/0/2 command
show voice port 0/0/2
Foreign Exchange Station 0/0/2 Slot is 0, Sub-unit is 0, Port is 2
Type of VoicePort is FXS VIC-4DID
Operation State is DORMANT
Administrative State is UP
The Last Interface Down Failure Cause is Administrative Shutdown
Description is not set
Noise Regeneration is enabled
Non Linear Processing is enabled
Non Linear Mute is disabled
Non Linear Threshold is -21 dB
Music On Hold Threshold is Set to -38 dBm
In Gain is Set to 0 dB
Out Attenuation is Set to 3 dB
Echo Cancellation is enabled
Echo Cancellation NLP mute is disabled
Echo Cancellation NLP threshold is -21 dB
Echo Cancel Coverage is set to 64 ms
Echo Cancel worst case ERL is set to 6 dB
Playout-delay Mode is set to adaptive
Playout-delay Nominal is set to 60 ms
Playout-delay Maximum is set to 250 ms
Playout-delay Minimum mode is set to default, value 40 ms
Playout-delay Fax is set to 300 ms
Connection Mode is normal
Connection Number is not set
Initial Time Out is set to 10 s
Interdigit Time Out is set to 10 s
Call Disconnect Time Out is set to 60 s
Supervisory Disconnect Time Out is set to 750 ms
Ringing Time Out is set to 180 s
Wait Release Time Out is set to 30 s
Companding Type is u-law
Region Tone is set for US
Analog Info Follows:
Currently processing none
Maintenance Mode Set to None (not in mtc mode)
Number of signaling protocol errors are 0
Impedance is set to 600r Ohm
Station name None, Station number None
Translation profile (Incoming):
Translation profile (Outgoing):
Voice card specific Info Follows:
Signal Type is loopStart
Ring Frequency is 25 Hz
Hook Status is On Hook
Ring Active Status is inactive
Ring Ground Status is inactive
Tip Ground Status is inactive
Digit Duration Timing is set to 100 ms
InterDigit Duration Timing is set to 100 ms
Hookflash-in Timing is set to max=1000 ms, min=150 ms
Hookflash-out Timing is set to 400 ms
No disconnect acknowledge
Ring Cadence is defined by CPTone Selection
Ring Cadence are [20 40] * 100 msec
Ringer Equivalence Number is set to 1
06-30-2013 01:42 AM
Seems like the port is set at default, power denial disconnect. Perhaps that is not what the device expects. Configuring can be a trial and error process, better done by a telephony expert.
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