Linksys SPA9000 Administration Guide

Linksys Voice System Administration Guide 190
Voice tab
Voice tab > FXS 1/2 page
SIP Settings section
Network Jitter Level Determines how jitter buffer size is adjusted by the SPA9000. Jitter
buffer size is adjusted dynamically. The minimum jitter buffer size is 30
milliseconds or (10 milliseconds + current RTP frame size), whichever is
larger, for all jitter level settings. However, the starting jitter buffer size
value is larger for higher jitter levels. This setting controls the rate at
which the jitter buffer size is adjusted to reach the minimum. Select the
appropriate setting: low, medium, high, very high, or extremely high.
Default: high
Jitter Buffer Adjustment Controls how the jitter buffer should be adjusted. Select the appropriate
setting: up and down, up only, down only, or disable.
Default: up and down
SIP Port Port number of the SIP message listening and transmission port.
Default: 5080
SIP Remote-Party-ID To use the Remote-Party-ID header instead of the From header, select
yes. Otherwise, select no.
Default: yes
SIP Debug Option SIP messages are received at or sent from the proxy listen port. This
feature controls which SIP messages to log. The choices are as follows:
none—No logging.
1-line—Logs the start-line only for all messages.
1-line excl. OPT—Logs the start-line only for all messages except
OPTIONS requests/responses.
1-line excl. NTFY—Logs the start-line only for all messages except
NOTIFY requests/responses.
1-line excl. REG—Logs the start-line only for all messages except
REGISTER requests/responses.
1-line excl. OPT|NTFY|REG—Logs the start-line only for all messages
except OPTIONS, NOTIFY, and REGISTER
requests/responses.
full—Logs all SIP messages in verbose mode.
full excl. OPT—Logs all SIP messages in full text except OPTIONS
requests/responses.
full excl. NTFY—Logs all SIP messages in full text except NOTIFY
requests/responses.
full excl. REG—Logs all SIP messages in full text except REGISTER
requests/responses.
full excl. OPT|NTFY|REG—Logs all SIP messages in full text except for
OPTIONS, NOTIFY, and REGISTER requests/responses.
Default: none

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