Yealink SIP-T54S Administrator's Manual page 795

Configuring Advanced Features
Parameters Permitted Values Default
Configures the domain name to which NAPTR record X refers.
Example:
dns_cache_naptr.1.name = yealink.pbx.com
Web User Interface:
None
Phone User Interface:
None
dns_cache_naptr.X.flags
S, A, U or P Blank
(X ranges from 1 to 12)
Description:
Configures the flag of NAPTR record X. (Always "S" for SIP, which means to do an SRV
lookup on whatever is in the replacement field).
S-Do an SRV lookup next
A-Do an A lookup next
U-No need to do a DNS query next
P-Service custom by the user
Example:
dns_cache_naptr.1.flags = S
Note: For more details of the permitted flags, refer to RFC 2915.
Web User Interface:
None
Phone User Interface:
None
dns_cache_naptr.X.order
Integer from 0 to 65535 0
(X ranges from 1 to 12)
Description:
Configures the order of NAPTR record X.
NAPTR record with lower order is more preferred. For example, NAPTR record with the
order 90 has the higher priority than that with the order 100 because 90 is lower than 100.
Example:
dns_cache_naptr.1.order = 90
Web User Interface:
None
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