ZyXEL GS-105I User Guide - Page 235
The Phone Device Screen
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Chapter 21 VoIP Table 98 VoIP > SIP > SIP Service Provider > Add new provider/Edit (continued) LABEL DESCRIPTION SIP DSCP Mark Setting Enter the DSCP (DiffServ Code Point) number for SIP message transmissions. The Zyxel Device creates Class of Service (CoS) priority tags with this number to SIP traffic that it transmits. RTP DSCP Mark Enter the DSCP (DiffServ Code Point) number for RTP voice transmissions. The Zyxel Device Setting creates Class of Service (CoS) priority tags with this number to RTP traffic that it transmits. Timer Setting SIP Register Expiration Duration Enter the number of seconds your SIP account is registered with the SIP register server before it is deleted. The Zyxel Device automatically tries to re-register your SIP account when one-half of this time has passed. (The SIP register server might have a different expiration.) SIP Register Fail Enter the number of seconds the Zyxel Device waits before it tries again to register the SIP Re-try timer account, if the first try failed or if there is no response. Session Expires (SE) Enter the number of seconds the Zyxel Device lets a SIP session remain idle (without traffic) before it automatically disconnects the session. Min-SE Enter the minimum number of seconds the Zyxel Device lets a SIP session remain idle (without traffic) before it automatically disconnects the session. When two SIP devices start a SIP session, they must agree on an expiration time for idle sessions. This field is the shortest expiration time that the Zyxel Device accepts. Dialing Interval Selection Dialing Interval Selection Enter the number of seconds the Zyxel Device should wait after you stop dialing numbers before it makes the phone call. The value depends on how quickly you dial phone numbers. DNS SRV Enable DNS SRV Select this to have the Zyxel Device use DNS procedures to resolve the SIP domain and find the SIP server's IP address, port number and supported transport protocol(s). The Zyxel Device first uses DNS Name Authority Pointer (NAPTR) records to determine the transport protocols supported by the SIP server. It then performs DNS Service (SRV) query to determine the port number for the protocol. The Zyxel Device resolves the SIP server's IP address by a standard DNS address record lookup. Cancel OK The SIP Server Port and REGISTER Server Port fields in the General section above are grayed out and not applicable and the Transport Type can also be set to AUTO if you enable this option. Click Cancel to exit this screen without saving. Click OK to save your changes. 21.5 The Phone Device Screen Use this screen to view detailed information on phones used for Internet phone calls (SIP). You can define which phone(s) will ring when a specific SIP address receives an incoming call, and which SIP address will be used when an outgoing call is made with a specific phone. To access this screen, click VoIP > Phone > Phone Device. PX7511-B0 User's Guide 235