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carries no RR. The SDES contains CNAME, NAME, and TOOL identifiers. The CNAME is set to
<User ID>@<Proxy>, NAME is set to <Display Name> (or "Anonymous" if user blocks caller ID),
and TOOL is set to the Verdor/Hardware-platform-software-version (such as Linksys/PHONE
ADAPTER2000-1.0.31(b)). The NTP timestamp used in the SR is a snapshot of the PHONE
ADAPTER's local time, not the time reported by an NTP server. If the PHONE ADAPTER
receives a RR from the peer, it will attempt to compute the round trip delay and show it as the
<Call Round Trip Delay> value (ms) in the Info section of PHONE ADAPTER web page.
4.10.2. Additional User Account Information
Parameter Name
Line Enable
2
MOH Server
SIP Port
SIP TOS/DiffServ
Value
RTP TOS/DiffServ
Value
3
SAS Enable
SAS DLG Refresh
3
Intvl
SAS Inbound RTP
3
Sink
© 2004 Linksys Proprietary (See Copyright Notice on Page 2)
Description
Enable this line for service
The User ID or URL of the auto-answering SAS to
contact for MOH services. Examples: 5000,
1001@music.Linksys.com, 66.12.123.15:5061.
Note: When only a user-id is given, the current
proxy or outbound proxy will be contacted as in the
making of a regular outbound call. MOH is disabled
if this parameter is not specified (empty).
SIP message listening port and transmission port
TOS/DiffServ field value in UDP IP Packets
carrying a SIP Message
TOS/DiffServ field value in UDP IP Packets
carrying a RTP data
Enables the FXS Line to act as a Streaming Audio
Source (SAS). If enabled, the line cannot be used
for making outgoing calls. Instead, it auto-answers
incoming calls and streams audio RTP packets to
the calling party.
If non-zero, this is the interval at which SAS sends
out session refresh (SIP re-INVITE) messages to
detect if connection to the caller is still up. If the
caller does not respond to refresh message,
PHONE ADAPTER will terminate this call with a
SIP BYE message. The default = 0 (Session
refresh disabled)
Range = 0-255 (s)
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 PHONE ADAPTER 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 will be 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
Type
Default
Bool
Yes
Str127
Empty
Port
5060
Byte
0x68
Byte
0xb8
Bool
No
0
Str63
73
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