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Creating Push Messages

52 4600 Series IP Telephones Application Programmer Interface (API) Guide

Each <Response> can contain only one <Audio> tag with the following attributes:

Each <Audio> tag can contain <AudioTimer> and <Url> tags. The <AudioTimer> tag is used as

an inter-packet timer. This timer is set every time a packet is received. After an administrable

duration where no packets are received the RTP stream is terminated. This tag has the

following attributes:

Each <Url> tag consists of information for the RTP streaming server and the local receive port

of the telephone. The <Url> tag has the following attributes:

The following reserved URIs can be used in the href attribute to control an audio stream:

Attribute Value Description

codec PCMU | PCMA Silence suppression on.

G.711 Annex A (no CID frames) µ-law | A-law

Default is PCMU.

packetsize 10|20|30|40|50|60

(milliseconds)

Default is 40 milliseconds.

Attribute Value Description

value X (seconds) Default is 20 seconds. The range is 5 to 30 seconds.

Attribute Value Description

href string RTP Streaming URI Format.

RTP Streaming URI

Format

IP Address Port

RTPRx denotes

“Receive” by the

phone

rtpserver_ip_address is

the IP Address of the

RTP streaming server.

Port Number separated by a colon. This is

the receive port number or rtpLPort value

from the GET request.

Reserved URIs Description

RTPRx://STOP Can be used to stop an audio streaming on the receive end.

To be successful, all Push requests that result in sending the

RTPRx://STOP must have a barge priority.

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Avaya 4600 Series Anwendungshinweis Seite 52