Grandstream Networks 200

Use DNS SRV: Default is No. If set to Yes the client will use DNS SRV to look up

server.

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

Unregister on

Reboot

Default is No. If set to yes, the SIP user’s registration information will

be cleared on reboot.

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.