Linksys Linksys SPA9000, Administration Manual

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Linksys Voice System Administration Guide 192
Voice tab
Voice tab > FXS 1/2 page
Streaming Audio Server (SAS) section
Voice tab > FXS 1/2 page
Call Feature Settings section
SAS Enable To enable the use of the line as a streaming audio source, select yes.
Otherwise, select no. If enabled, the line cannot be used for outgoing
calls. Instead, it auto-answers incoming calls and streams audio RTP
packets to the caller.
Default: no
SAS DLG Refresh Intvl If this value is not zero, it is the interval at which the streaming audio
server sends out session refresh (SIP re-INVITE) messages to determine
whether the connection to the caller is still active. If the caller does not
respond to the refresh message, the SPA9000 ends this call with a SIP
BYE message. The range is 0 to 255 seconds (0 means that the session
refresh is disabled).
Default: 30
SAS Inbound RTP Sink This setting works around devices that do not play inbound RTP if the
streaming audio server line declares itself as a send-only device and tells
the client not to stream out audio. Enter a Fully Qualified Domain Name
(FQDN) or IP address of an RTP sink; this value is used by the SPA9000’s
streaming audio server line in the SDP of its 200 response to an inbound
INVITE message from a client.
The purpose of this parameter is to work around devices that do not
play inbound RTP if the SAS line declares itself as a “sendonly” device
and tells the client not to stream out audio. This parameter is a FQDN or
IP address of a RTP sink to be used by the SPA SAS line in the SDP of its
200 response to inbound INVITE from a client. It will appear in the c =
line and the port number and, if specified, in the m = line of the SDP. If
this value is not specified or equal to 0, then c = 0.0.0.0 and a=sendonly
is used in the SDP to tell the SAS client to not to send any RTP to this SAS
line. If a non-zero value is specified, then a=sendrecv and the SAS client
will stream audio to the given address. Special case: If the value is $IP,
then the SAS line’s own IP address is used in the c = line and a=sendrecv.
In that case the SAS client will stream RTP packets to the SAS line.
Default: blank
Blind Attn-Xfer Enable Enables the SPA9000 to perform an attended transfer operation by
ending the current call leg and performing a blind transfer of the other
call leg. If this feature is disabled, the SPA9000 performs an attended
transfer operation by referring the other call leg to the current call leg
while maintaining both call legs. To use this feature, select yes.
Otherwise, select no.
Default: no
MOH Server User ID or URL of the auto-answering streaming audio server. When only
a user ID is specified, the current or outbound proxy is contacted. Music-
on-hold is disabled if the MOH Server is not specified.
Xfer When Hangup Conf Makes the SPA9000 perform a transfer when a conference call has
ended. Select yes or no from the drop-down menu.
Default: Yes