Value Range Yes
No
Note
If you select [Yes], the unit will perform a DNS SRV lookup for
a SIP registrar server, SIP proxy server, SIP outbound proxy
server, or SIP presence server. If you select [No], the unit will
not perform a DNS SRV lookup for a SIP registrar server, SIP
proxy server, SIP outbound proxy server, or SIP presence
server.
Default Value No
Configuration File Reference SIP_DNSSRV_ENA_[1–8] (Page 186)

SRV lookup Prefix for UDP

Description Specifies a prefix to add to the domain name when performing a DNS
SRV lookup using UDP.
Note
This setting is available only when [Enable DNS SRV
lookup] is set to [Yes].
Value Range Max. 32 characters
Default Value _sip._udp.
Configuration File Reference SIP_UDP_SRV_PREFIX_[1–8] (Page 187)

SRV lookup Prefix for TCP

Description Specifies a prefix to add to the domain name when performing a DNS
SRV lookup using TCP.
Note
This setting is available only when [Enable DNS SRV
lookup] is set to [Yes].
Value Range Max. 32 characters
Default Value _sip._tcp.
Configuration File Reference SIP_TCP_SRV_PREFIX_[1–8] (Page 187)
3.6.2.8 Timer Settings

T1 Timer

Description Selects the default interval, in milliseconds, between transmissions of
SIP messages. For details, refer to RFC 3261.
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