Media5 Mediatrix 4104, Reference Manual, Page: 247 / 466

Callee Hang-up Supervision Reference Manual (SIP Version)
Mediatrix 4104 225
2. If applicable, configure the Mediatrix 4104 to suppress loop current on its lines when they cannot
be used or when the IP connection is lost by setting the
fxsLoopCurrentDropEnable variable to
enable .
The loop current is interrupted on the port as soon as it enters an unusable state, or if the unit's IP
network connection is lost.
If you set the value to disable , the loop current is unaffected by the port usability.
3. Restart the Mediatrix 4104 so that the changes may take effect.
When a remote end-user goes on-hook, the Mediatrix 4104 signals the far end disconnect by performing a
current loop drop (< 1 mA) on the analog line. This current loop drop, also referred to as “Power Denial” mode,
is typically used for disconnect supervision on analog lines. The Mediatrix 4104 maintains a current drop for
one second (this value cannot be configured), then a busy tone is generated to indicate the user to hang up.
Callee Hang-up Supervision
This feature determines whether call clearing occurs as soon as the called user is the first to hang up a
received call or after a user-defined delay.
This feature allows to emulate the behaviour of some SCNs that delay the ending of a call when the callee
hangs up first.
When the feature is activated, hanging up on a received call will not terminate the call right away. Instead, the
connection will remain active for a user-defined amount of time. If the callee picks up the phone before the
expiration of that delay, he is still in communication with the caller (assuming the caller has not already hung
up).

To enable the callee hang-up supervision:
1. In the fxsMIB, set the fxsCalleeHangupDelay variable with the amount of time, in seconds, the
Mediatrix 4104 waits after the called user hangs up before signalling the end of the call.
The default value is 60 seconds.
2. Enable the callee hang-up supervision feature by setting the fxsCalleeHangupSupervision variable
to enable .
When the user is the first to hang up on a received call, the Mediatrix 4104 waits for the amount of
time set in the
fxsCalleeHangupDelay variable before signalling the end of the call.
Note:
This feature is effective only when the user is the called party. When the user acts as the calling party,
the call ends as soon as the user hangs up. It is also effective only with a single active call. Callee hang-up
supervision has no effect when the callee hangs up with a call on hold, wants to perform a call transfer, or
if he is the initiator of a three-way conference call.