Yealink SIP-T2 Series Administrator's Manual page 215

Default 1
Parameter account.X.sip_server.Y.expires
It configures the registration expiration time (in seconds) of SIP server Y.
Description Example:
account.1.sip_server.1.expires = 3600
Permitted
Integer from 30 to 2147483647
Values
Default 3600
Web UI Account->Register->SIP Server Y->Server Expires
Parameter account.X.sip_server.Y.retry_counts
It configures the retry times for the IP phone to resend requests when the SIP server Y is unavailable or
there is no response from the SIP server Y.
Example:
Description
account.1.sip_server.1.retry_counts= 3
The IP phone moves to the next available server after three failed attempts.
Permitted
Integer from 0 to 20
Values
Default 3
Web UI Account->Register->SIP Server Y->Server Retry Counts
account.X.sip_server.Y.only_signal_with_registered
Parameter
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It enables or disables the IP phone to only send requests to the registered server when encountering a fail-
over.
Description
Note: It works only if "account.X.sip_server.Y.register_on_enable" is set to 1 (Enabled) and "account.X.sip_
server.Y.failback_mode" is set to 1, 2 or 3.
Permitted
0-Disabled
1-Enabled
Values
Default 0
Parameter account.X.sip_server.Y.invite_retry_counts
It configures the number of retries attempted before sending requests to the next available server when
Description
encountering a failover.
Permitted
Integer from 1 to 10
Values
Default 3
Parameter account.X.sip_server.Y.failback_mode
It configures the mode for the IP phone to retry the primary server in failover.
Description
Note: It works only if "account.X.sip_server.Y.address" is set to the domain name of the SIP server.
0-newRequests: all requests are sent to the primary server first, regardless of the last server that was used.
Permitted
Values
1-DNSTTL: the IP phone will send requests to the last registered server first. If the time defined by DNSTTL
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<MAC>.cfg
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<MAC>.cfg
<MAC>.cfg
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<MAC>.cfg
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<MAC>.cfg
Account Settings
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