
Creating Push Messages
40 4600 Series IP Telephones Application Programmer Interface (API) Guide
Normal Priority
When the mode attribute in the <Push> tag is set to normal, the telephone state for the Topline
push type is as follows:
● If the Topline is being used for system messages such as application help messages, then
the text string is buffered until the higher-priority message is complete.
● If the phone is in a non-pushable state, meaning the Push Message cannot be displayed
on the top display line, the Push Agent sends the Push Initiator the following responses for
a normal priority Topline push request. The Push request does not proceed to request
Push Content.
If a text string is pushed while the top display line is displaying an earlier pushed text string, then
the new text string replaces the previous one as a normal priority.
Note: The expiration time on all pushed text strings is 30 seconds. All Topline
messages are discarded after 30 seconds.
Barge Priority
When the mode attribute in the <Push> tag is set to barge, the Topline Push Content is
accepted as a priority message. However, a barge Topline push is rejected when the telephone
is in one of these non-pushable states:
● When the telephone is in the process of restoring a retrieved backup file, or
● When a Local Procedure has been initiated. See the 4600 Series IP Telephone LAN
Administrator Guide on the Avaya support Web site for more details on Local maintenance
procedures.
In either non-pushable state, the barge content, including any notification tones, is discarded. In
all other cases, the telephone must accept the barge request and display the barge Topline
message immediately.
Parameter Status Code Reason Phrase
HTTP Status Code 200 “OK”
x-Push-Status 205 “Not In Push State: Push Aborted”
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