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Lucent Technologies DEFINITY Enterprise Communications Server Release 8.2 Instructions Manual
Lucent Technologies DEFINITY Enterprise Communications Server Release 8.2 Instructions Manual
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DEFINITY ECS Release 8.2 Administrator’s Guide 555-233-506 Issue 1.1 June 2000 Features and technical reference 1387 Intercom 20 Interactions nDistributed Communications System (DCS) If the DEFINITY ECS has both DCS and ISDN displays, the ICLID information displays in DCS formats. Intercom If you have users who call each other frequently, you can help them communicate more quickly. With the intercom feature, you can allow one user to call another user in a predefined group just by pressing a couple of buttons. You can even administer a button that always calls a predefined extension when pressed. Brief description You control which phones can make intercom calls to each other by putting them in groups called “intercom groups.” Once a set of phones have been added to the group, you allow users to make intercom calls by administering one or both of the following feature buttons on their phones: Phones with one or both of these features can belong to the same group. Intercom groups nYou can create up to 32 intercom groups on one DEFINITY ECS. nEach group can have up to 32 extensions in it. nIt’s OK to assign the same extension to different groups. nIntercom calls are only possible between extensions in the same group. nAny group member with a feature button for dial intercom can make an intercom call to any other member in the group. Automatic IntercomThis button always calls one predefined phone in the same intercom group when pressed. You specify the destination extension for this button. Dial Intercom This button allows users in an intercom group to call anyone else in the same group. The caller lifts the handset, presses the Dial Intercom button, then dials a 1- or 2- digit code for the extension they want to reach.
DEFINITY ECS Release 8.2 Administrator’s Guide 555-233-506 Issue 1.1 June 2000 Features and technical reference 1388 Intercom 20 Phones nYou can assign any type of phone to an intercom group. However, only multiappearance phones can make and receive intercom calls. Single-line phones can only receive intercom calls. Multiappearance phones must have at least one open or available call appearance to receive intercom calls. nPhones receiving an intercom call make a unique alerting sound. If the phone has an intercom button with a status lamp, the lamp flashes. nYou can administer an automatic intercom connection between 2 phones even if their classes of restriction don’t allow other calls between them. Interactions nBridged Appearances Bridged appearances can’t receive intercom calls. nCall Coverage Intercom calls do not follow a coverage path unless the caller activates Go To Cover. nCall Forwarding Intercom calls cannot be forwarded off-net. nCall Pickup/Directed Call Pickup Intercom calls are not included in the call pickup alerting count. nData Privacy and Data Restriction Extensions with either of these features active cannot originate intercom calls. Related topics Refer to ‘‘ Using phones as intercoms’’ on page 399 to administer intercom capabilities on phones.
DEFINITY ECS Release 8.2 Administrator’s Guide 555-233-506 Issue 1.1 June 2000 Features and technical reference 1389 Internal Automatic Answer 20 Internal Automatic Answer Internal Automatic Answer (IAA) provides convenient hands-free answering of internal calls to users on multifunction stations with a speakerphone or a headphone. Detailed description An eligible call can be answered automatically via IAA if the user activates IAA at the answering telephone and the user is able to accept an incoming call. A telephone is unable to accept an incoming call if it is off-hook, is in the process of dialing digits, or has a call on hold. The following internal calls are eligible for IAA, depending on how you administer the Internal Auto-Answer of Attd-Extended/Transferred Calls field on the Feature-Related System Parameters screen: nStation-to-station voice calls, with both telephones on the same switch (includes redirected intraswitch calls). Set the Internal Auto-Answer of Attd-Extended/Transferred Calls field to transferred or both. nInternal call from another switch node in a Distributed Communications System (DCS) configuration when the origin of the call is known to be an internal, non-attendant telephone on that switch (includes redirected inter-DCS calls). Set the Internal Auto-Answer of Attd-Extended/Transferred Calls field to transferred or both. nAttendant-extended external calls. Set the Internal Auto-Answer of Attd-Extended/Transferred Calls field to attd-extended or both. The following calls are not eligible for IAA: nCalls from public-network trunks (including personal central office line (PCOL)) nCalls from non-DCS tie trunks nAutomatic Callback calls nAutomatic Circuit Assurance calls nData calls nAttendant-extended external calls if the Internal Auto-Answer for Attd Extended/Transferred Calls field is set to transferred or none nCalls that the system redirects because of a queue overflow of Emergency Access to the Attendant calls nCalls when the receiving station’s Active Station Ringing field is set to continuous
DEFINITY ECS Release 8.2 Administrator’s Guide 555-233-506 Issue 1.1 June 2000 Features and technical reference 1390 Internal Automatic Answer 20 IAA Feature Operations With IAA, you can assign a single programmable feature button (IAA) to telephones. When the user presses the IAA feature button, the button lamp lights and the system activates IAA. Pressing the same button again deactivates IAA and turns off the status lamp. (Pressing the feature button has no effect on a currently-active call or a ringing call.) The IAA button may be toggled on or off at any time, regardless of the state of the telephone. Using the speakerphone to place calls does not affect the state of IAA. The calling telephone receives a tone when its call is answered automatically by a telephone with IAA. The called telephone receives a tone (a ring ping) and then goes off-hook when automatically answering an IAA-eligible call. The answering telephone’s speaker and microphone are both turned on. If a user has IAA active and is currently busy on a call or is in the process of dialing digits, subsequent incoming calls are treated as if IAA were not activated. Considerations nUsers should always deactivate IAA when leaving the work area. Otherwise, incoming calls are unintentionally answered by the unattended station, and do not go to coverage. nA 602A terminal is off-hook when the headset or speakerphone is connected. Therefore IAA answers a call if all other call appearances are idle. Interactions nAttendant Console IAA is not available with Attendant Console. nAutomatic Answer You cannot administer both IAA and Automatic Answer simultaneously on the same telephone. nAutomatic Call Distribution Calls directed to an ACD split are eligible for IAA. nAutomatic Callback Callback calls via Automatic Callback are not answered automatically by IAA. nAutomatic Circuit Assurance Calls generated by ACA are not eligible for IAA.
DEFINITY ECS Release 8.2 Administrator’s Guide 555-233-506 Issue 1.1 June 2000 Features and technical reference 1391 Internal Automatic Answer 20 nBridged Call Appearance — Multiappearance Telephone Calls terminating on a bridged call appearance are not eligible for IAA at the bridged station, even if the bridged station has IAA active. (IAA can be used by the principal station to answer the call.) nBridged Call Appearance — Single-Line Telephone Calls terminating to a bridged call appearance are not eligible for IAA at the bridged station, even if the bridged station has IAA active. nCall Coverage If an internal call is redirected to another telephone by Call Coverage redirection criteria, then that call is eligible for IAA at the redirected telephone. IAA does not apply to calls to the original called extension when: — The called telephone has activated Send All Calls — The calling telephone has selected Go to Cover before placing the call Calls directed to a coverage answering group are not eligible for IAA. NOTE: If you set the coverage path for a station to All Calls and that station activates IAA, the first coverage point hears a ring, the principal station automatically answers, and the coverage-simulated bridge is dropped. The coverage station rings, but is not able to answer the call because the coverage-simulated bridge has been dropped. nCall Forwarding Calls to a station with IAA and Call Forwarding active are forwarded and are not answered by the station dialed. NOTE: If the forwarded-to station is internal and has IAA active, it automatically answers the redirected call. nCall Park If you are using Deluxe Paging and Call Park times out, the call returns to the originating station that parked the call and is eligible for IAA. nCall Pickup Internal calls to a telephone in a Call Pickup group are eligible for IAA. If the called extension in a Call Pickup group has IAA-active, the call is automatically answered. A telephone with IAA active is not able to automatically answer calls to other telephones in its Call Pickup group.
DEFINITY ECS Release 8.2 Administrator’s Guide 555-233-506 Issue 1.1 June 2000 Features and technical reference 1392 Internal Automatic Answer 20 nConference Internal conference calls can be answered automatically via IAA. If more than one party has joined a conference call through automatic answer, the parties remain connected until they disconnect or the controlling party drops the call. nData Call Setup Data calls are not eligible for IAA. nDirect Department Calling and Uniform Call Distribution Internal calls to a DDC or UCD group member are eligible for IAA. nDistributed Communications System If a call is from an internal telephone on another switch in a DCS configuration, then that call is considered internal and is eligible for automatic answer. nDo Not Disturb Do Not Disturb preempts IAA at the called telephone. nGo to Cover IAA does not apply to calls to the original called extension when the calling telephone has selected Go to Cover before placing a call. nISDN-BRI IAA is not available with ISDN-BRI terminals. nLoudspeaker Paging — Deluxe Paging When you are using Deluxe Paging and Call Park times out, the call returns to the originating station that parked the call and is eligible for IAA. nRingback Queuing Automatic calls generated by Ringback Queuing are not eligible for IAA. nSend All Calls IAA does not apply to calls to extensions with Send All Calls is active. nTerminating Extension Group Calls to a Terminating Extension Group extension are not eligible for IAA. However, calls placed to an individual extension are eligible.
DEFINITY ECS Release 8.2 Administrator’s Guide 555-233-506 Issue 1.1 June 2000 Features and technical reference 1393 IP trunk service 20 IP trunk service DEFINITY ECS allows you to route voice and real time fax calls over Internet Protocol (IP) networks such as private intranets, reducing long-distance charges and giving you added flexibility in routing traffic between sites. Both the origin and destination switches must have the DEFINITY Internet Protocol Trunk (DEFINITY ECS) application or Lucent’s Internet Telephony Server-Enterprise (ITS-E) Release 1.2. DEFINITY IP Trunk application consists of the following components: nThe DEFINITY IP Trunk software, which routes telephone calls and faxes over your company’s intranet nConfiguration Manager software, which lets you administer the operation and performance of DEFINITY ECS service Both the IP trunk software and Configuration Manager reside on the Windows NT server on the IP Trunk circuit pack. For information about Internet Telephony Server-Enterprise, contact your Lucent representative. Brief description DEFINITY IP Trunk application can be administered to provide service that emulates T1 and E1 digital service. Your users dial phone numbers exactly as they would for calls routed over conventional trunk groups, including the use of the Automatic Route Selection (ARS) feature access code (normally 9 in the U.S.). Here’s how DEFINITY ECS and the DEFINITY IP Trunk application process a call: Caller Goes off hook and dials a number. Origin switch Collects digits, consults the routing table, and sends the dialed digits to the IP trunk application. Origin IP trunk applicationDetects the incoming call and receives the digits sent by the origin switch. Performs any local digit translations, determines the IP address of the destination IP trunk server and sends the call over the IP trunk group to that IP address.
DEFINITY ECS Release 8.2 Administrator’s Guide 555-233-506 Issue 1.1 June 2000 Features and technical reference 1394 IP trunk service 20 Restricting access When DEFINITY IP Trunk application is installed and configured, it can receive calls from any IP address. You can restrict access to your site using Access Control on the Dial/Routing Plan property page of Configuration Manager. This allows you to specify the IP addresses (either specific or subnet) that can access your system through the DEFINITY IP Trunk application. This restriction on access can be enabled for other DEFINITY ECS systems (gateways) and NetMeeting™ PCs (clients). The DEFINITY IP Trunk application can also block outgoing calls based on the analysis of the number dialed. For example, you can use Originating Routing Info on the Dial/Routing Plan property page of Configuration Manager to block all phone numbers that start with 1-900. Reducing long-distance costs with off-premise dialing Normally, only calls going to a switch with a DEFINITY IP Trunk application are routed over IP networks. However, DEFINITY ECS supports off-premise dialing. Calls not intended for a remote switch can be routed over the IP network to that switch, which then routes the calls over the public telephone network to the final destination. This helps you significantly reduce long-distance costs. For example, suppose there is a DEFINITY ECS with the DEFINITY IP Trunk application in Tokyo and another one in New York. A user can make a call to New Jersey from Tokyo by sending the call from Tokyo to New York over the IP network. The New York switch sends the call over the public telephone network to New Jersey, greatly reducing the long-distance expense. If you want users to dial the same telephone numbers for off-premise dialing as for direct dialing, you have to administer the origin and destination switches to manipulate the digit string. For example, the following chart illustrates different possible originating and terminating locations for calls to a DEFINITY IP Trunk application site, labeled as Terminating Site-1. Destination IP trunk applicationReceives a connection indication and the digits sent by the origin IP trunk application. Performs any local digit translations and delivers the call to the destination switch. Destination switchDetects the incoming call and receives digits. Rings the phone associated with that number. Called party Answers the call.
DEFINITY ECS Release 8.2 Administrator’s Guide 555-233-506 Issue 1.1 June 2000 Features and technical reference 1395 IP trunk service 20 Possible sites for originating a call to Terminating Site-1 are labeled O1 (for Originating Site-1), O2, and so on. A call can terminate on a telephone connected to the switch at T1, or it can be routed “off-premise” to terminating sites T2, T3, or T4. Since the IP calls received at Terminating Site-1 are dialed the same way as conventional calls, even if no off-premise dialing is configured, the telephone number received will differ depending on where the call originated: nCalls from Originating Site-O1 (which is within the same area code as T1) contain only exchange and extension portions. nCalls from O2 (which is within the same country, but in a different area code than T1) contain a long distance access code and an area code, as well as an exchange and an extension. nCalls from O3 contain an international access code, a country code, an area code, an exchange and an extension. In all three cases, the DEFINITY IP Trunk application at Terminating Site-1 changes the digits in the telephone number received to match what the switch expects to receive for a call to one of its extensions.
DEFINITY ECS Release 8.2 Administrator’s Guide 555-233-506 Issue 1.1 June 2000 Features and technical reference 1396 IP trunk service 20 Now consider an example where off-premise dialing is configured. When O1 calls T2 over the IP network (via the T1 switch), the user at O1 dials the exchange of T2, not T1. Therefore, O1 has to be administered to route the call through T1, and T1 has to change the digit string to route the call to T2. Similarly, let’s say O3 calls T4 via the T1 switch. The caller dials the local international access code and the country code for T4. The DEFINITY IP Trunk application at T1 converts O3’s international access code to the code appropriate for its own location, and preserves the country code for T-4. !CAUTION: Lucent recommends that you avoid more than 3 consecutive analog voice to data packet conversions on voice calls. Repeated compression and decompression of a voice call may seriously degrade sound quality. Examples of conversions are: routing a voice (analog) call over a TCP/IP format such as an IP or ATM trunk, recording a voice call into an Intuity AUDIX, or playing back a voice call from an Intuity AUDIX. You can configure DEFINITY ECS and the DEFINITY IP Trunk application to allow off-premise dialing to some destinations but not to others. For example, you can administer a remote switch to allow off-premise dialing to any exchange in its own area code but not to any other area code. Refer to DEFINITY ECS Administration for Network Connectivity for more information about planning and administering call routing on IP trunks. You can allow users to dial off-premise numbers directly as described above. You can also use indirect, or two-stage, dialing. Two-stage dialing requires users to dial 2 phone numbers and a security code, as opposed to dialing the off-premise (at the remote site) number exactly as they would without DEFINITY ECS. Two-stage dialing is more difficult and requires users to learn a new dialing procedure, but it is somewhat more secure. !SECURITY ALERT: All off-premise dialing at the remote site, regardless of which method is used, has the potential for toll fraud. Refer to the BCS Products Security Handbook and to ‘‘ Enhancing system security’’ in this manual. Rerouting calls when IP transmission quality is poor With Configuration Manager, you can administer the DEFINITY IP Trunk application to monitor packet loss and transmission time on an IP trunk group and compare network performance with preset criteria for both measurements. If either packet loss or transmission time exceeds the criteria you’ve set, the IP trunk application blocks access to the trunk group until transmission quality improves.