Grandstream GXW410x User Manual - Manual (Page 24)

Grandstream Networks, Inc. GXW410x User Manual Page 24 of 32
Firmware Version 1.4.1.5 Last Updated: 5/2014
TABLE 11: FXO LINE ANALYSIS
LINE ANALYSIS
Overview Note: The user can only test the parameters for only one of the PSTN lines at the
same time. In all cases please enter the telephone numbers as if the lines were to
dial each other locally.
For the AC Impedance Test we only need to select the line to be tested by clicking on
the AC impedance box corresponding to that line, telephone numbers are optional.
Remember that the AC impedance test is usually used to reduce the echo that might
be present in the line.
For the CPT test (call progress tones) we will test current disconnect as well. You will
need 2 telephone numbers to perform the test. You can only perform the test on one
line (row) at the same time and it will be the one that has the box checked for testing.
This tested line will use another line connected to the gateway to perform the test by
calling into it, this is why you will have to enter the telephone number for a second
line to help with the test.
For CID detection you will need 2 telephone numbers to perform the test. You can
only perform the test on one line (row) at the same time and it will be the one that has
the box checked for testing. This tested line will use another line connected to the
gateway to perform the test by calling into it, this is why you will have to enter the
telephone number for a second line to help with the test.
To perform the test, please select the line you want to test and the desired test to be
performed. Enter the information for this line as well as a second line if necessary.
Then click on the update button and then reboot. Log back in and now you should
see the information for the line selected as well as the check box already marked
already there. Go ahead and start the test now, please wait a few minutes until the
test is done.
Notes:
It is not required to enter a telephone number when testing for impedance, as the
system does not place any actual calls for the test.
If you log into the Web Interface while the test is running will not interrupt the process.
Auto Detect
Line # Enter the telephone (PSTN) number that corresponds to this line. Enter it as if you
were going to dial it locally.
AC Impedance Select this box if you want to test for impedance on the line that is on the same row
as the checked box. Remember that you can only check one item at the same time.
CPT Detection Select this box if you want to test for call progress tones and current disconnect
threshold on the line that is on the same row as the checked box. Remember that you
can only check one item at the same time.
External Number Enter an external telephone (PSTN) number to be used as an auxiliary number for
the test. This is used only if we do not have at least 2 PSTN lines connected to the
gateway. This is only used for CPT and current disconnect threshold testing. In order
to use this function you will have to monitor the Syslog output. This is only reserved
for very advanced users.
External Call Timeout This is the time the GXW will wait for the external telephone number to pick up during
the test.
Apply test results
automatically
Default is No. If selected on Yes, then all the results from the test will be applied
automatically. If you select No you will have to monitor the Syslog output. This is only
reserved for very advanced users.
Apply test results to all
ports Default is No. If selected on Yes, then all the test results will be applied to all ports on
the gateway. If all the lines belong to the same service provider or PBX it will make
sense to apply the results to all ports.
Error Timeout This is the time the gateway will wait to exit the test mode, when something
unexpected or an error has occurred.