ZyXEL ISG50-PSTN User Guide - Page 485
Outbound Trunk Group, ISG50 User's Guide
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Chapter 30 Outbound Trunk Group Table 166 SIP Trunk Add/Edit (continued) LABEL Minimum SE DESCRIPTION Enter the minimum session expiry time in seconds. The allowable range is 90~1800 seconds. Session Expires When an incoming call requests a session expiry time that is lower than this, the ISG50 uses this value instead. Enter the session expiry time in seconds for all phone connections on this trunk. The allowable range is 90~86400 seconds. This value cannot be lower than the Minimum SE. CallerID Setting This allows the ISG50 to automatically disconnect any phone calls on this trunk after a certain period of inactivity. Configure this section to change the format of identification you want to send when you make VoIP phone calls. CallerID Viewer CallerID Name & Number The default format is "From: "Extension"". This field displays the caller ID format shown to the callees depending on the setting you configure in the CallerID Name & Number and The Extension Prefix fields. Select the caller ID display format to use for the SIP trunk's outgoing calls. A caller ID consists of a call ID name (A), a caller ID number (B) and a SIP server IP address (C). The caller ID has the following format: "A". The choices are: (In the following examples, we assume a company representative number is 12345678, their SIP server IP is 10.1.1.1, a caller extension number is 1111 and DDI/DID number 12345555 can map to the extension 1111.) The Extension Prefix • Extension + Extension: Displays the caller's extension number in A and B. For example, "1111". • Extension + Representative Num.: Displays the caller's extension number in A and the SIP trunk's representative number in B. For example, "1111". • Representative Num. + Representative Num.: Displays the SIP trunk's representative number in A and B. For example, "12345678". Select this format if you don't want callees to know the caller's extension number. • Extension + Representative Num (DDI/DID mapped): Displays the caller's extension number in A and the SIP trunk's DDI/DID mapped representative number in B. For example, "1111". If no DDI/DID is matched, displays the representative number in B. • Representative Num (DDI/DID mapped) + Representative Num (DDI/DID mapped): Displays the SIP trunk's DDI/DID mapped representative number in both A and B. For example, "12345555". If no DDI/DID is matched, displays the representative number in A and B. Specify whether to add a prefix number in the callerID name when you make calls through this trunk connection. The availability of this setting varies depending on the format of CallerID Name & Number you selected. Authentication Username This field can be 0-20 alphanumeric characters (A-Z, a-z, 0-9), underscores (_), colons (:), periods (.), hyphens (-) and pluses (+) Type the SIP user name associated with this extension. The IP phone registering with the ISG50 must provide this for authentication. Password This field can be 1-20 alphanumeric characters (A-Z, a-z, 0-9). Type the SIP password associated with this extension. The IP phone registering with the ISG50 must provide this for authentication. This field can be 0-20 alphanumeric characters (A-Z, a-z, 0-9), underscores (_), pluses (+), periods (.), and "at" symbols (@). ISG50 User's Guide 485