Troubleshooting Guide 56 Document #: LTRT-57601
MediaPack, Mediant 1000, Mediant 2000
9.2 Why Can't I Transfer a Call Between FXS Interfaces
Troubleshooting for call transfer between FXS interfaces can include the following issues:
The call disconnects between the initial call parties (e.g., A and B) when one of the
parties (e.g., A) presses the Flash Hook button to try transfer the call to another party
(e.g., C).
No secondary dial tone is played when one party (e.g., A) tries to transfer a call (with,
for example, B) to another party (e.g., C), by pressing the Flash Hook button. The call
between the two initial call parties (e.g., A and B) continues as usual.
Table 9-2: FXS Call Transfer Troubleshooting
Possible Cause Solution
1.
The time for detecting a hook-
flash signal is too short or too
long.
To re-define the minimum time (in msec) for detection of a
hook-flash event, use the parameter MinFlashHookTime. To
define the maximum hook-flash detection period, use the ini
file parameter FlashHookPeriod.
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