User manual GRANDSTREAM HT-286

[. . . ] User Manual HandyTone-286 Rev 3. 0 Analog Telephone Adaptor For Firmware Version 1. 0. 8. 32 Grandstream Networks, Inc. www. grandstream. com HandyTone -286 User Manual Grandstream Networks, Inc. Table of Contents 1 2 3 WELCOME. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 WHAT IS INCLUDED IN THE PACKAGE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 3. 1 3. 2 4 4. 1 4. 2 5 SAFETY COMPLIANCES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [. . . ] Registration This parameter allows the user to specify the time frequency (in minutes) the Expiration phone will refresh its registration with the specified registrar. Early Dial This parameter controls whether the phone will attempt to send an early INVITE each time a key is pressed when a user dials a number. If set to "Yes", an INVITE is sent using the dial-number collected thus far; Otherwise, no INVITE is sent until the "(Re-)Dial" button is pressed or after about 5 seconds have elapsed if the user forgets to press the "(Re-)Dial" button. The "Yes" option should be used ONLY if there is a SIP proxy configured and the proxy server supports 484 Incomplete Address response. Otherwise, the call will most likely be rejected by the proxy (with a 404 Not Found error). Please note that this feature is NOT designed to work with and should NOT be enabled for direct IP-to-IP calling. Dial Plan Prefix This value contains the dial plan prefix string (typically an ASCII numeric string). Timeout Use # as This parameter allows the user to configure the "#" key to be used as the Send Key "Send"(or "Dial") key. Once set to "Yes", pressing this key will immediately trigger the sending of dialed string collected so far. In this case, this key is essentially equivalent to the "(Re)Dial" key. If set to "No", this # key will then be included as part of the dial string to be sent out. Local SIP port This parameter defines the local SIP port the IP phone will listen and transmit on. Local RTP port This parameter defines the local RTP-RTCP port pair the IP phone will listen and transmit on. 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. Use Random Port This parameter, when set to Yes, will force random generation of both the local SIP and RTP ports. This is usually necessary when multiple IP phones are behind the same NAT. 28 HandyTone -286 User Manual Grandstream Networks, Inc. NAT Traversal This parameter defines whether the phone NAT traversal mechanism will be activated or not. If activated (by choosing "Yes") and a STUN server is also specified, then the phone will behave according to the STUN client specification. Under this mode, the embedded STUN client inside the phone will attempt to detect if and what type of firewall/NAT it is behind by sending appropriate request to the specified STUN server. If this field is set to "Yes" with no specified STUN server, then the phone will only periodically (every 20 seconds by default) send a blank UDP packet (with no payload data) to the SIP server to keep the mapped port open on the NAT. keep-alive interval The HandyTone-286 sends a UDP package to the SIP server periodically in order to keep the port open on the router. This parameter defines the interval time that HT286 send the UDP package. [. . . ] Without an OBP/SBC, the media traffic travels directly between the VoIP phones. Private OBP/SBCs are used along with firewalls to enable VoIP calls to and from a protected enterprise network. Public VoIP service providers use 41 HandyTone -286 User Manual Grandstream Networks, Inc. OBP/SBCs to allow the use of VoIP protocols from private networks with internet connections using NAT. PPPoE Point-to-Point Protocol over Ethernet, is a network protocol for encapsulating PPP frames in Ethernet frames. the phone service we use for every ordinary phone call, or called POT (Plain Old Telephone), or circuit switched network. [. . . ]