Alternative Routing Parameters - AudioCodes Mediant 800B User Manual

Parameter
Web: Alt Routing Tel to IP
Connectivity Method
EMS: Alternative Routing
Telephone to IP Connection
Method
CLI: alt-rte-tel2ip-method
[AltRoutingTel2IPConnMethod]
Web: Alt Routing Tel to IP Keep
Alive Time
EMS: Alternative Routing Keep
Alive Time
CLI: alt-rte-tel2ip-keep-alive
[AltRoutingTel2IPKeepAliveTime]
Web: Max Allowed Packet Loss for
Alt Routing [%]
CLI: mx-pkt-loss-4-alt-rte
[IPConnQoSMaxAllowedPL]
Web: Max Allowed Delay for Alt
Routing [msec]
CLI: mx-all-dly-4-alt-rte
[IPConnQoSMaxAllowedDelay]
57.10.14

Alternative Routing Parameters

The alternative routing parameters are described in the table below.
Parameter
Web: 3xx Use Alt Route
Reasons
CLI: configure voip/sip-
definition advanced-
settings/3xx-use-alt-route
User's Manual

[2] QoS = Alternative routing is performed if poor QoS is
detected.

[3] Both = (Default) Alternative routing is performed if either
SIP OPTIONS to initial destination fails, poor QoS is
detected, or the DNS host name is not resolved.
Notes:

QoS is quantified according to delay and packet loss
calculated according to previous calls. QoS statistics are
reset if no new data is received within two minutes.

To receive quality information (displayed in the 'Quality
Status' and 'Quality Info.' fields in ''Viewing IP Connectivity''
on page 716) per destination, this parameter must be set to
2 or 3.
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.
Note: ICMP Ping is currently not supported for the IP
Connectivity feature.
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 is 60.
Defines the packet loss (in percentage) at which the IP
connection is considered a failure and Alternative Routing
mechanism is activated.
The default is 20%.
Defines the 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 is 250.
Table 57-68: Alternative Routing Parameters
Defines the handling of received SIP 3xx responses regarding call
redirection to listed contacts in the Contact header.

[0] No = (Default) Upon receipt of a 3xx response, the device
tries each contact, one by one, listed in the Contact headers,
until a successful destination is found. However, if a contact
1008
Mediant 800B Gateway and E-SBC
Description
Description
Document #: LTRT-10620