Grandstream Networks BT200 - Manual (Page 28)

Allow Auto Answer
by Call-Info Default is No. If set to Yes, auto answer depends on the Call-Info in the SIP
message. This feature needs the support of IP-PBX.
Turn off speaker on
remote disconnect Default is No. If set to Yes, the speaker will turn off, and the phone will go
back to idle status, after the other party of the call hands up.
Check SIP User ID for
Incoming Invite When turned on, it will validate the To URI for incoming INVITE before
accepting it. If it differs from locally configured URI, it should reject the call
with 404 Not Found message.
Preferred Vocoder The BT–200 supports up to 5 different Vocoder types including G.711(a/µ)
(also known as PCMU/PCMA), GSM, G.723.1, G.729A/B.
Configure Vocoders in a preference list that is included with the same
preference order in SDP message. Enter the first Vocoder in this list by
choosing the appropriate option in “Choice 1”. Similarly, enter the last Vocoder
in this list by choosing the appropriate option in “Choice 8”.
SRTP Mode Disabled: BT–200 will use RTP for both inbound and outbound calls. (Default
setting)
Enabled but not forced: BT–200 provides crypto suites to others SIP phones.
If they support SRTP, then use SRTP, otherwise, use RTP.
Enabled and forced: All calls using this account must use SRTP. If the other
party doesn’t support SRTP, BT200 will decline the call. If we invite others,
and receive a “200 Ok” message without crypto suite, we will send a “BYE”
message followed by the “ACK” message to terminate the call. If someone
invites us without crypto suite, we will response a “488 Not Acceptable Here”
message.
Special Feature Default is Standard. Choose the selection to meet some special requirements
from SoftSwitch vendors.
S
AVING THE
C
ONFIGURATION
C
HANGES
Once a change is made, click the “Update” button in the Configuration Menu. The IP phone will display a
confirmation page. Reboot or power cycle the BT–200 after all changes to ensure the changes take
effect.
F IGURE 5: S AVE C ONFIGURATION S CREENSHOT
Grandstream Networks, Inc. BT-200 User Manual Page 28 of 35
Firmware 1.1.1.14 Last Updated: 12/2006