Configuring A Streaming Audio Server; Using A Streaming Audio Server - Linksys SPA9000 Administration Manual

7. Unzip this file and save it to an accessible directory on your TFTP server. Then repeat this
procedure and enter the correct server IP address, port, and the path to the unzipped file.

Configuring a Streaming Audio Server

This section describes how to use and configure a streaming audio server (SAS). It includes the
following topics:
• "Using a Streaming Audio Server, " on page 99
• "Using the IVR with an SAS Line, " on page 100
• "Example SAS with MOH, " on page 100
• "Configuring the Streaming Audio Server, " on page 101

Using a Streaming Audio Server

On a connected call, the SPA9000 may place the remote party on hold by performing a hook-
flash to initiate a three-way call or by swapping two calls during call-waiting. If the remote
client indicates that it can still receive audio while the call is holding, the SPA9000 can be
configured to contact an auto-answering streaming audio server (SAS) to stream audio to the
holding party. When used this way, the SAS is referred to as an MOH Server.
The SAS feature lets you use attach an audio source to one of the SPA9000 FXS ports (Phone 1
or Phone 2 on the PAP2T) and use it as a streaming audio source device. If the SPA9000 has
multiple FXS ports, either or both of the associated lines (Line 1 and Line 2 on the PAP2T) can
be configured as an SAS server.
When the line is called and the FXS port is off hook, the SPA9000 answers the call automatically
and streams audio to the calling party.
If the FXS port is on-hook when the incoming call arrives, the SPA9000 replies with a SIP 503
response code to indicate "Service Not Available. " If an incoming call is auto-answered, but later
the FXS port changes to on-hook, the SPA does not terminate the call but continues to stream
silence packets to the caller. If an incoming call arrives when the SAS line has reached full
capacity, the SPA replies with a SIP 486 response code to indicate "Busy Here. "
The SAS line can be setup to refresh each streaming audio session periodically using a SIP re-
INVITE message, which detects if the connection to the caller is down. If the caller does not
respond to the refresh message, the SAS line terminates the call so that the streaming resource
can be used for other callers.
Each SAS server can maintain up to five simultaneous calls. If the second line on the SPA9000 is
disabled, then the SAS line can maintain up to 10 simultaneous calls. Further incoming calls
receive a busy signal (SIP 486 Response).
The streaming audio source must be off-hook for the streaming to occur. Otherwise incoming
calls get a error response (SIP 503 Response). The SAS line does not ring for incoming calls even
if the attached equipment is on-hook.
Linksys Voice System Administration Guide
Configuring Music on Hold
Configuring a Streaming Audio Server
99