Administrator’s Guide for W80 DECT IP Multi-Cell System
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Parameter
account.X.sip_server.Y.invite_retry_counts
[1][2]
<MAC>.cfg
Description
It configures the number of retries attempted before sending requests to the next available server
when encountering a failover.
Permitted
Values
Integer from 1 to 10
Default
3
Parameter
account.X.sip_server.Y.failback_mode
[1][2]
<MAC>.cfg
Description
It configures the mode for the phone to retry the primary server in failover.
Note
: It works only if "template.X.sip_server.Y.address" is set to the domain name of the SIP server.
Permitted
Values
0
-newRequests: all requests are sent to the primary server first, regardless of the last server that was
used.
1
-DNSTTL: the phone will send requests to the last registered server first. If the time defined by
DNSTTL on the registered server expires, the phone will retry to send requests to the primary server.
2
-Registration: the phone will send requests to the last registered server first. If the registration
expires, the phone will retry to send requests to the primary server.
3
-duration: the phone will send requests to the last registered server first. If the time defined by the
“account.X.sip_server.Y.failback_timeout” parameter expires, the phone will retry to send requests to
the primary server.
Default
0
Parameter
account.X.sip_server.Y.failback_timeout
[1][2]
<MAC>.cfg
Description
It configures the timeout (in seconds) for the phone to retry to send requests to the primary server after
failing over to the current working server.
If you set the parameter to 0, the phone will not send requests to the primary server until a failover
event occurs with the current working server.
If you set the parameter between 1 and 59, the timeout will be 60 seconds.
Note
: It works only if “account.X.sip_server.Y.failback_mode” is set to 3 (duration).
Permitted
Values
0, Integer from 60 to 65535
Default
3600
Parameter
account.X.sip_server.Y.failback_subscribe.enable
[1][2]
<MAC>.cfg
Description
It enables or disables the phone to retry to re-subscribe after registering to the secondary server with
different IP addresses when encountering a failover.
Note
: It works only if "account.X.sip_server.Y.failback_mode" is set to 1, 2 or 3.
Permitted
Values
0
-Disabled
1
-Enabled, the phone will immediately re-subscribe to the secondary server, for ensuring the normal
use of the features associated with the subscription (for example, BLF, SCA).
Default
0
[2]
Y is the server ID. Y=1-2.
SIP Server Name Resolution
If a domain name is configured for a server, the IP address(es) associated with that domain name will be resolved
through DNS as specified by
. The DNS query involves NAPTR, SRV and A queries, which allows the IP
