Linksys SPA9000 Administration Guide

Linksys Voice System Administration Guide 197
Line 1/2/3/4 page
Voice tab > Line page
SIP Settings section
RTP ToS/DiffServ Value ToS/DiffServ field value in UDP IP packets carrying RTP data.
Default: 0xb8
RTP CoS Value [0-7] CoS value for RTP data.
Default: 6
SIP Transport Options: UDP, TCP, or TLS
Default: UDP
SIP Port Port number of the SIP message listening and transmission port.
Default: 5060
SIP 100REL Enable To enable the support of 100REL SIP extension for reliable transmission
of provisional responses (18x) and use of PRACK requests, select yes.
Otherwise, select no.
Default: no
Auth Resync-Reboot If this feature is enabled, the SPA9000 authenticates the sender when it
receives the NOTIFY resync reboot (RFC 2617) message. To use this
feature, select yes. Otherwise, select no.
Default: yes
SIP Proxy-Require The SIP proxy can support a specific extension or behavior when it
detects this header from the user agent. If this field is configured and
the proxy does not support it, it responds with the message,
unsupported. Enter the appropriate header in the field provided.
Default: blank
SIP Remote-Party-ID To use the Remote-Party-ID header instead of the From header, select
yes. Otherwise, select no.
Default: yes
SIP GUID The Global Unique ID is generated for each line for each device. When it
is enabled, the SPA9000 adds a GUID header in the SIP request. The
GUID is generated the first time the unit boots up and stays with the
unit through rebooting and even factory reset. This feature was
requested by Bell Canada (Nortel) to limit the registration of SIP
accounts.
Default: no

Linksys SPA9000 Specifications

Physical Interfaces

Ethernet ports	2 10/100BaseT RJ-45
Phone ports	2 RJ-11 FXS
Ring voltage	40-55 VRMS
Ring frequency	10 Hz - 40 Hz
Maximum ringer load	3 REN

Power

On-hook voltage	-50 V NOMINAL
Off-hook current	25 mA min
Terminating impedance	Configurable, including 600 ohms