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Local RTP port
Use Random port
NAT Traversal
Keep alive interval
Use NAT IP
Voice Mail User
ID
Subscribe for
MWI
Auto Answer
Offhook
Enable call features
Disable Call
Waiting
This parameter defines the local
The default value is 5004.
Default No. If set to Yes, the device will pick randomly generated SIP and RTP ports. This is usually necessary and useful when multiple IP Phones are behind the same full cone NAT router.
Defines whether the NAT traversal mechanism is activated. It should be set to YES if the device is behind NAT router.
If Outbound Proxy is NOT configured, STUN server needs to be set to activate STUN detection mechanism. Usually ITSP will provide these settings for device to work properly behind NAT/Firewall
If this field is set to “Yes” without STUN server, then the device will periodically (every
Default is 20 seconds. The interval of sending dummy UDP packet to keep NAT “pin hole” open in the router side. Min. value is 10 seconds.
NAT IP address (WAN side) used in SIP/SDP message. Default is blank.
SIP Extension to notify SIP server that the unit is behind the NAT/Firewall. Required by some soft switch vendor like Nortel MCS.
User ID (extension or access number) of a 3rd party VoiceMail system where the user may have an account. By defining it, user presses the “MESSAGE” button on the phone, an INVITE message will send to that ID/number to allow the user to retrieve VM.
Default is No. When set to Yes, a SUBSCRIBE for Message Waiting Indication will be sent periodically to server.
Default is No. When set to Yes, the phone will automatically pick up the call after a short beep and turn on the speaker.
This parameter allows the user to configure a User ID or extension number to be automatically dialed upon off hook (like hot line). Please note that only the user part of a SIP address needs to be entered here. The phone will automatically append the “@” and the host portion of the corresponding SIP address.
Default is Yes. Advance call features or feature codes functions (Star code, see Section 5.4 of this manual) are supported locally
Default is No. User can use * code to use this feature per call basis.
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