Grandstream Networks BudgeTone-200 - Manual (Page 40)

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User ID is Phone
Number If the BudgeTone 200 has an assigned PSTN telephone number, this
field should be set to “Yes”. Otherwise, set it to “No”. If “Yes” is set, a
“user=phone” parameter will be attached to the “From” header in SIP
request
SIP Registration This parameter controls whether the BudgeTone 200 needs to send
REGISTER messages to the proxy server. The default setting is “Yes”.
Unregister on
Reboot Default is No. If set to yes, the SIP user’s registration information will
be cleared on reboot.
Register Expiration This parameter allows user to specify the time frequency (in minutes)
that BudgeTone 200 refreshes its registration with the specified
registrar. The default interval is 60 minutes (or 1 hour). The maximum
interval is 65535 minutes (about 45 days).
Local SIP port This parameter defines the local SIP port the BudgeTone 200 will listen
and transmit. The default value for Account 1 is 5060. It is 5062, 5064,
5066 for Account 2, Account 3 and Account 4 respectively.
SIP T1 Timeout T1 is an estimate of the round-trip time (RTT) between the client and
server transactions. If the network latency is high, select bigger value
for reliable usage.
SIP T2 Interval This element sets the value of the SIP protocol T2 timer, in seconds.
Timer T2 defines the retransmit interval for INVITE responses and non-
INVITE requests. The SIP protocol default value is 4 seconds.
NAT Traversal This parameter defines whether the BudgeTone 200 NAT traversal
mechanism will be activated or not. If activated (by choosing “Yes”)
and a STUN server is also specified, then the BudgeTone 200 will
behave according to the STUN client specification. Under this mode,
the embedded STUN client inside the BudgeTone 200 will attempt to
detect if and what type of firewall/NAT it is sitting behind through
communication with the specified STUN server. If the detected NAT is
a Full Cone, Restricted Cone, or a Port-Restricted Cone, the BudgeTone
200 will attempt to use its mapped public IP address and port in all of
its SIP and SDP messages. If the NAT Traversal field is set to “Yes”
with no specified STUN server, the BudgeTone 200 will periodically
(every 20 seconds or so) send a blank UDP packet (with no payload
data) to the SIP server to keep the “hole” on the NAT open.
Subscribe for
MWI: Default is No. When set to “Yes” a SUBSCRIBE for Message Waiting
Indication will be sent periodically.
Proxy-Require SIP Extension to notify SIP server that the unit is behind the
NAT/Firewall.