When the destination is busy and the user presses the Ring Again key, Device Adapter subscribes to a Ringout call. The Ring Again key with an arrow now appears on the idle screen.
The user can cancel the Ring Again request by pressing the Ring Again key before a callback offer is received. A callback offer is received when Avaya Aura® presents the Ringout call invitation.
When the user receives an incoming indication that the target is idle, Device Adapter flashes the Ring Again key and provides audible indications, which can be a normal or priority ring tone.
The Ringout call is answered if the user takes the phone off-hook or selects a call appearance. If the user does not answer within a programmed period of time, Ring Again is cancelled. The programmed period of time is usually six ring cycles.
When Ringout call is presented by Communication Manager, the user receives an incoming call on a free call appearance and Ring Again soft key flashes indicating that this is a Ringout call. If there are no free appearances, the call cannot be presented.
When the Ring Again key flashes to present the callback offer, the user can press the Ring Again key to ignore the offer. The Ring Again key becomes dark and the audible tone stops. Pressing the Ring Again key only ignores the callback offer and does not cancel it. The offer automatically times out after the time-out period is reached.
This behavior is similar to the Ignore option on the Avaya Aura® SIP endpoints. When a callback offer is presented on an Avaya Aura® SIP endpoint, the Ignore soft key appears on the endpoint. The user can press the Ignore soft key to ignore the callback offer.
The user answers this Ringout call like a normal call by off-hook or by selecting the ringing call appearance.
Note:
There is a difference in configuration between Device Adapter and Communication Manager phones. Device Adapter phones have one call appearance by default and Communication Manager phones have two call appearances. Additionally, Communication Manager phones cannot deactivate Ring Again (Automatic Callback) when both call appearance lines are busy. The same behavior is applicable to a Device Adapter phone.
If both lines become busy, users cannot use Ring Again unless they restart their phone.
The following is an example of the preceding scenario on Device Adapter phones:
User A calls User B. User B answers.
User C calls User A, but User A does not answer. User C presses Ring Again to call User A later.
User D calls User C and User C answers.
User A and User B end their call.
The Ring Again is cancelled because there is only one call appearance.
User C and User D end their call. Ring Again does not happen.
Avaya recommends that you configure a second call appearance for Device Adapter phones to overcome this limitation.
