Grandstream Networks HandyTone-496

HandyTone-496 User Manual Grandstream Networks, Inc.

No Key Entry

timeout Default is 4 seconds.

NAT Traversal This parameter defines whether the HandyTone ATA NAT traversal

mechanism will be activated or not. If activated (by choosing “Yes”) and a

STUN server is also specified, then the HandyTone ATA will behave according

to the STUN client specification. Under this mode, the embedded STUN client

inside the HandyTone ATA 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 HandyTone ATA will attempt to use its mapped public IP

address and port in all its SIP and SDP messages. If the NAT Traversal field is

set to “Yes” with no specified STUN server, the HandyTone ATA 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.

Keep-alive interval This parameter specifies how often the HandyTone ATA sends a blank UDP

packet to the SIP server in order to keep the “hole” on the NAT open.

Use NAT IP: NAT IP address is used in SIP/SDP message. Default is blank.

Firmware Upgrade

and Provisioning Default method is HTTP. Firmware upgrade may take up to 10 minutes

depending on network environment. Do not interrupt the firmware upgrading

process.

Firmware Server

Path IP address or domain name of firmware server.

Config Server Path IP address or domain name of configuration server.

Firmware File

Prefix Default is blank. If configured, HandyTone-496 will request the firmware file

with the prefix. This setting is useful for ITSPs. End user should keep it blank.

Firmware File

Postfix Default is blank. End user should keep it blank.

Config File Prefix Default is blank. End user should keep it blank.

Config File Postfix Default is blank. End user should keep it blank.

Automatic Upgrade Default is “Yes”.

Firmware Key For firmware encryption. It should be 32 digit in Hexadecimal Representation.

End user should keep it blank.

FXS Impedance Selects the impedance of the analog telephone connected to the Phone port.