Hitachi HANDYTONE-486 user manual Grandstream Networks, Inc

Early Dial

Allow outgoing call without Registration

Dial Plan Prefix

No Key Entry timeout

Use # as

Send Key

Local SIP port

Local RTP port

Use Random Port

NAT Traversal

Keep-alive interval

Use NAT IP:

Proxy-Require

Subscribe for MWI:

Default is “No”. Use only if proxy supports 484 response.

Default is “No”. When set to “Yes”, the device still has a dial tone and allows user make outgoing calls even if the device is not registered to the SIP proxy.

Sets the prefix added to each dialed number.

Default is 4 seconds.

This parameter allows user to configure the “#” key to be used as the “Send” (or “Dial”) key. Once set to “Yes”, pressing this key will immediately trigger the sending of dialed string collected so far. If set to “No”, the “#” key will then be included as part of the dialed string to be sent out.

This parameter defines the local SIP port the HandyTone ATA listens and transmits. The default value is 5060.

This parameter defines the local RTP-RTCP port pair the HandyTone ATA listens and transmits. It is the base RTP port for channel 0. When configured, channel 0 will use this port_value for RTP and the port_value+1 for its RTCP; channel 1 will use port_value+2 for RTP and port_value+3 for its RTCP. 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 when multiple HandyTone ATAs are behind the same NAT.

This setting decides whether the NAT traversal mechanism is activated. It should be set to “Yes” if the device is behind a NAT router. If no outbound proxy is configured, a STUN server needs to be set to activate STUN detection mechanism. Usually ITSP will provide these settings.

If this field is set to “Yes”, then the device will periodically (every Keep-alive interval) send a dummy UDP packet to the SIP server to pinhole the NAT.

Default is 20 seconds. The minimum value allowed is 10 seconds. This is the interval of sending dummy UDP packet to keep the NAT “pin hole” open.

If configured, the NAT IP address will be used in SIP/SDP message. Default is blank.

SIP Extension to notify SIP server that the unit is behind the NAT/Firewall.

Default is “No”. When set to “Yes” a SUBSCRIBE for Message Waiting Indication will be sent periodically.

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