DRAFT
© 2003 - 2005 Sipura Technology, Inc
Proprietary (See Copyright Notice on Page 2)
11
o
Dialing: Collecting digits from the user to be dialed out from this Line
o
Calling: Waiting for the called party to respond
o
Proceeding (a.k.a. Progressing): Called party is ringing
o
Ringing (a.k.a. Alerting): Incoming call ringing
o
Connected: Connected with remote party
o
Held: Remote party is on hold
o
Invalid: Remote party hangs up or error while attempting outbound call
o
Busy: the line is being used by another station (shared line only)
•
A Call in a certain state by preceding the term Call with the corresponding state name. For
example, a Ringing Call, a Dialing Call
•
Active (Call) State: If the state is Dialing, Calling, Proceeding, Connected, or Invalid. When the
state of the Call is Active, we refer to it as an Active Call
•
Standby (Call) State: If the state is Ringing or Holding. When the state of the Call is Standby, we
refer to it as a Standby Call
•
Key: Any one of the keys on the SPA-841 keypad. A Key can have 2 states: down (when
pressed) or up (when released)
•
Button – a Key with an on and off state. The on/off state toggles when the key is pressed down
where applicable. There are 3 buttons on the SPA-841: SPEAKER, HEADSET, and MUTE. Each
button has an associated LED that indicates the on/off state.
•
SK(
label
) – Soft key with the given label, such as SK(select), SK(cancel), SK(dial), SK(conf),
SK(xfer)
4 Call
Features
Selecting Audio I/O Device and Line
There are 3 sets of audio i/o devices available: a) Handset, b) Built-in microphone and speaker, and c)
External microphone and headset. The speaker is also used for ringing. For convenience, we shall simply
refer to (b) as the speaker, and (c) as the headset where the context is clear.
Only one audio device can be selected at anytime. The speaker is selected by pressing the SPEAKER
button. The headset is selected by pressing the HEADSET button. When the SPEAKER or HEADSET is
selected, the corresponding LED will be steady GREEN.
The handset is selected whenever it goes from
the on-hook to the off-hook position
. Hence selecting or turning on of any of the audio device can be
thought of as equivalent to an off-hook action, while turning off of any of the audio device while it is
selected can be thought of as equivalent to on-hook or hang-up operation.
When there are no active calls, all audio devices are unselected. When any one of the calls becomes
active, the handset will be selected automatically as the audio device if it is off-hook, or else the speaker
or the headset will be selected according to configuration: the user can configure whether speaker or the
headset device has higher preference.
A line is selected by pressing the corresponding Line Key.
To make or receive calls, the user must select a call appearance (Line Key) or an audio device. If the
user selects a call appearance, then an audio device is selected automatically according to user’s
preference setting. If the user selects an audio device, an idle call appearance is selected automatically
in the order L1, L2, L3, and L4. The user may switch between audio devices while the call in any of the
active states.
