Welltech VoIP ATA series V.303 User Manual
Page 68
ATA Web user guide
Welltech Technology Co., Ltd.
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2015/1/8
Item Description
Provide options: Disable, Enable.
*This function must be supported from SIP Server.
Use user=phone
(Invite)
Default: Disable; When this function is on, the Invite Header will
add ”user=phone” message in Invite packages.
Provide options: Disable, Enable.
*This function must be supported from SIP Server.
Send SIP PRACK
of Proxy
Default: Disable; When this function is on, there will add “PRACK
Header” messages.
Provide options: Disable, Enable.
*This function must be supported from SIP Server.
Only Accept
Trusted
Certificates
Default: Enable. Set up IP incoming call if it comes from trusted
SIP Server or IP-PBX or not.
When Enable
, this device only accept IP incoming call from
trusted SIP Server or IP-PBX.
It will reject P2P call.
When Disable, this device accept P2P call.
And accept any IP
incoming call even from not trusted SIP Server or IP-PBX.
Provide drop-down options: Disable, Enable.
Set up User
Agent Content
Default: (null); When send SIP packets, the packets header
“User-Agent” message will join this word. This column can enter
numbers and strings (support: 0~9, a~z, @, _, -, *, #, ., +, :, ()
[, ] and blank); maximum length is 46 bytes.
Submit [Button]
Save the Settings.