Section 700 - Operation Chapter 5. Key Telephone FeaturesS-ICX-50-700 S-ICX (International) issued October 2000 147• Text message send and text message reply requires display Key Telephones. Also, Text MessageSend and Text Message Reply keys must be programmed on the telephones.Conference CallsDescriptionConference Calls allow you to add another party to an existing conversation. With the standardsystem configuration, up to 3 parties can be included in a conference call at any one time. If theoptional Conference Card is installed, up to 8 parties can participate in a conference call.Any combination of extensions and trunk lines can be in the conference as long as the originalextension is in the conference and the total number of parties does not exceed 8. Only one operation isused to establish and add to a conference. You simply have to place the current call on hold, dial thenext party and press the CONF key. No different operation or access code is required to addadditional parties to the call.When no optional conference card is installed, the system supports the following types of three-partyconference calls:• 3 extensions• 2 extensions and 1trunk line• 1 extension and 2 trunk linesWhen the optional 8-party conference card is installed, the system supports any combination ofconference calls, except all outside lines.OperationTo establish a conference call:Action Result1. While on a call, press the HOLD key or the line key of yourcurrent call.Extension number, outside line number,or name of held party displays2. If adding an outside party, press a vacant trunk key, or dial atrunk access code (default = 9 [UK/HK], 0[Taiwan, Malay-sia, Indonesia], or 81-84).• Outside dial tone• CO #XXX displays (where XXX = linenumber)3. Dial the number of the party you wish to add to the call. Dialed number displays4. Press the CONF key when your call is answered. CNF1:CO XXX or EXT XXX andCNF2:CO YYY or EXT YYY displays(where XXX = first party and YYY = sec-ond party)5. To add additional parties, repeat steps 1-4