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ScoopTeam - User manual - Draft 0002
3.4. Managing links
3.4.1. Setting up and releasing links
Generally speaking, once the codec is set up and the transmission interface(s) to be used is(are)
configured, it is possible to manage audio links with remote devices.
Transmission links/sessions have to be set, which can be done in two ways:
“Outgoing call” launched towards a remote device: the procedure is to select a transmission
interface, a coding configuration, “dial” the destination to call and then set the call to the
remote unit. The detailed operating mode is described further, for the various transmission
media, in xxx (xxx).
“Incoming call” received from a remote device: on receiving a call on one of the connected and
active interfaces, the codec switches to this interface and processes the call.
In a similar way, ending/releasing a link is either initiated by the remote unit (remote release), or by the
operator of the ScoopTeam (local release).
3.4.2. Auto-redial feature
When it is necessary to hold the link on permanently, outgoing calls may be backed up by using the
auto-redial function (for each codec in double codec mode). When it is active and the codec is the
initiator of the link, the codec automatically tries to re-set the link in case of an initial failure, or if an
established link is dropped for another reason than a local release (i.e. hanging up by the user). The
redial capability applies in the following situations:
If the initial call fails for any reason (e.g. called party is busy); the codec then redials and retries
to establish the link.
The codec can also redial if the link is already established and the link is lost, for any reason else
than “local release” (e.g. the remote unit mistakenly dropped the line).
After a power failure, after rebooting the codec will automatically redial and set-up the link
back.
Note that, while “auto redial” is active, an established link can be definitively stopped only by
releasing the line on the calling codec side. Otherwise, every time the called party will hang up,
the calling codec will redial and reset the link.
It is possible to program the time period that the unit will wait before redialling after a failed trial, and it
is also possible to program the maximum number of times the codec will redial before giving up.
The activation of this function and the configuration of its parameters can be found in
TBD
.
In double codec mode, the function can be activated separately for each codec.
3.4.3. GPIO control (
NYA
)
In normal operation, outgoing calls are sent or released using the menus and/or the remote control
interface. It is also possible to assign functions to the GPIO so that these can partially manage the
connections: “Call” action or “Release” action. This capability is described in 2.5.5, GPIO.
