Version 6.2 481 February 2011
SIP User's Manual 10. Configuration Parameters Reference
Parameter Description
''Configuring Alternative Routing (Based on Connectivity and
QoS)'' on page 247.
To receive quality information (displayed in the 'Quality
Status' and 'Quality Info.' fields in ''Viewing IP Connectivity''
on page 190) per de
stination, this parameter must be set to
2 or 3.
Web: Alt Routing Tel to IP
Connectivity Method
EMS: Alternative Routing
Telephone to IP Connection
Method
[AltRoutingTel2IPConnMethod]
Determines the method used by the device for periodically
querying the connectivity status of a destination IP address.
[0] ICMP Ping (default) = Internet Control Message Protocol
(ICMP) ping messages.
[1] SIP OPTIONS = The remote destination is considered
offline if the latest OPTIONS transaction timed out. Any
response to an OPTIONS request, even if indicating an
error, brings the connectivity status to online.
[EnableAltMapTel2IP]
Enables different Tel-to-IP destination number manipulation
rules per routing rule when several (up to three) Tel-to-IP
routing rules are defined and if alternative routing using release
causes is used. For example, if an INVITE message for a Tel-
to-IP call is returned with a SIP 404 Not Found response, the
call can be re-sent to a different destination number (as defined
using the parameter NumberMapTel2IP).
[0] = Disable (default)
[1] = Enable
Web: Alt Routing Tel to IP Keep
Alive Time
EMS: Alternative Routing Keep
Alive Time
[AltRoutingTel2IPKeepAliveTime]
Defines the time interval (in seconds) between SIP OPTIONS
Keep-Alive messages used for the IP Connectivity application.
The valid range is 5 to 2,000,000. The default value is 60.
Web/EMS: Alternative Routing
Tone Duration [ms]
[AltRoutingToneDuration]
Determines the duration (in milliseconds) for which the device
plays a tone to the endpoint on each Alternative Routing
attempt. When the device finishes playing the tone, a new SIP
INVITE message is sent to the new destination. The tone
played is the Call Forward Tone (Tone Type #25 in the CPT
file).
The valid range is 0 to 20,000. The default is 0 (i.e., no tone is
played).
Web: Max Allowed Packet Loss for
Alt Routing [%]
[IPConnQoSMaxAllowedPL]
Packet loss in percentage at which the IP connection is
considered a failure and Alternative Routing mechanism is
activated.
The default value is 20%.
Web: Max Allowed Delay for Alt
Routing [msec]
[IPConnQoSMaxAllowedDelay]
Transmission delay (in msec) at which the IP connection is
considered a failure and the Alternative Routing mechanism is
activated.
The range is 100 to 10,000. The default value is 250.
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