Lucent Technologies DEFINITY Enterprise Communication Server Release 8.2 Administrators Guide

							DEFINITY ECS Release 8.2
Administrator’s Guide  555-233-506  Issue 1
April 2000
Managing multimedia calling 
227 Multimedia Applications Server Interface 
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nPull transfer — MASI terminals cannot perform a pull transfer operation. 
You must not administer this feature on an ECS where MASI is active. This 
applies only in Italy. 
nStation Hunting — You must not administer a MASI terminal as part of a 
station hunting path. 
nTerminating Extension Groups — You must not administer a MASI 
terminal as part of a TEG. 
Other interactions
The following section describes feature behaviors that may not be as expected, but 
that are not likely to be destructive. 
Attendant features
nDial Access to the Attendant — MASI terminals will be able to dial the 
attendant access code, if it is administered in the MMCX dial plan. 
nAttendant Direct Extension Selection — Attendants are able to access 
MASI terminals via DXS buttons and busy lamp indicates status of the 
MASI terminal. 
nEmergency Access to the Attendant — MASI terminals have emergency 
access using the attendant access code, if it is administered in the MMCX 
dial plan. However, off-hook alerting is not administrable. 
nAttendant Intrusion — Attendants are able to activate intrusion towards 
MASI terminals. 
nAttendant Override — Attendants are not able to activate override towards 
MASI terminals. 
nAttendant Recall — MASI terminals cannot activate attendant recall. 
nAttendant Remote Trunk Group Select — Attendants cannot use this 
feature to select MASI remote trunks.
nAttendant Return Call — Operates normally if a MASI terminal is the 
called party.
nAttendant Serial Call — Serial calls are denied if the calling party is an 
MMCX interface.
nAttendant Straightforward Outward Completion — The attendant is able to 
complete calls to DEFINITY trunks for MASI terminals. 
nAttendant Through Dialing —The attendant can use Through Dialing to 
pass dial tone to MASI terminals. 
nAttendant Timers — Attendant timers work the same no matter what kind 
of terminal is involved.  
						

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nAttendant Trunk Group Busy/Warning Indicators — You cannot administer 
Busy/Warning indicators for MASI trunks because they are not standard 
DEFINITY trunks. However, you can administer these indicators for the 
trunk group administered for MASI paths. 
nAttendant Trunk Identification — The attendant is not able to identify the 
trunk name via button pushes. 
Basic features 
nAbbreviated Dialing — A DEFINITY station can enter an MMCX 
extension in an AD list. However, MASI terminals cannot use AD. 
nAdministered Connections — MASI terminals must not be the originator 
nor the destination of an administered connection. 
nAutomatic Callback — Automatic callback does not work towards a MASI 
terminal. 
nAutomatic Circuit Assurance — You must not administer a MASI terminal 
as an ACA referral destination. You cannot administer ACA for MASI 
remote trunks. 
nBusy Verification of Terminals and Trunks — You cannot use Busy 
Verification for MASI terminals or remote trunks.
nCall Detail Recording — CDR Account Code Dialing and Forced Entry of 
Account Codes are not supported for MASI terminals. See Call Detail 
Recording in Detailed Description for more information. 
nCall Park — The attendant can park calls at the extension of a MASI 
terminal, but users can only retrieve these calls from a DEFINITY station, 
since MASI terminals cannot dial the Answer Back FAC. 
nData Call Setup — DEFINITY users cannot place data calls to MASI 
terminals. 
nFacility Busy Indication — You can use FBI to track the status of MASI 
terminals. The FBI button and indicator lamp must be on a DEFINITY 
station. You cannot use FBI to track MMCX interfaces. 
nFacility Test Calls — DEFINITY users cannot make test calls to MMCX 
interfaces. 
nGo to Cover — MASI terminals cannot activate this feature. 
nLeave Word Calling — The only valid LWC destination for a MASI 
terminal is AUDIX. You cannot administer SPE-based LWC. MASI 
terminals cannot send LWC messages to DEFINITY stations or MASI 
terminals. 
nLoudspeaker paging — You can administer a MASI terminal as a code 
calling extension.  
						

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Administrator’s Guide  555-233-506  Issue 1
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nMalicious Call Trace — MASI terminals cannot initiate malicious call 
trace. 
nMessage Retrieval — MMCX users can only retrieve messages through 
AUDIX. 
nMusic on Hold — Music on hold will only be available if a DEFINITY 
station has placed the call on hold.
nOverride — Executive override does not work towards MASI terminals. 
nPriority Calling — Priority calling is not supported for calls to or from 
MASI terminals. 
nRingback Queueing — Ringback Queueing is not supported for MASI 
terminals. 
nSend All Calls — MMCX has an autonomous SAC function. See Call 
Redirection for more information. 
nTenant Partitioning — All MASI terminals exist in tenant 1, and you 
cannot change the tenant number. 
nTime of Day coverage — As with all coverage, DEFINITY does not 
control coverage of the MASI terminal.
nTransfer out of AUDIX — A MASI terminal cannot use *T to transfer from 
AUDIX to another MASI terminal. 
Hospitality features
nDo Not Disturb — MASI terminals cannot activate Do Not Disturb. 
Multimedia features 
nMultimedia Call Handling — DEFINITY MMCH users are not able to 
make H.320 calls to MASI terminals over the MASI link. Calls between 
MMCX terminals and MMCH terminals are voice only. 
Troubleshooting
Verify proper operation using the following commands and follow normal 
escalation procedures to resolve any failures detected by the demand test. 
1. Verify the DS1 trunk using the 
test board  long 
command.
2. Verify the ISDN Signaling Group using the 
test signaling-group 
 command. Also verify proper administration. 
3. Verify the temporary signaling connection using the 
test tsc-administered 

 command. Also verify proper administration. 
						

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Administrator’s Guide  555-233-506  Issue 1
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Common error conditions 
If the cable from the ECS to the MMCX becomes disconnected, you should see 
alarms raised against ISDN-SGRP and UDS1-BD. In particular, you should 
observe ISDN-SGRP errors such as 769, 1793, and 257. To resolve, reconnect the 
cable and follow normal test procedures. 
If the far-end path termination number is incorrect, you should observe 
MASI-PTH error 513. To resolve, correct administration using the MASI Path 
Parameters form. 
If the Layer 3 TSC is not administered properly or is out of service, you should 
observe errors (but no alarms) raised against TSC-ADM. Verify the signaling 
group administration and follow normal escalation procedures for TSC-ADM. See 
the appropriate DEFINITY ECS Maintenance manual for more information. 
If the TSC fails to come up even through Layer 2 Signaling Group and below pass 
tests, you may run
 test tsc-administered  to force a switch 
heartbeat test, or simply wait 5–10 minutes for the link to recover. This situation 
may happen if the switch is rebooted or if the MASI interface is administered 
before the MMCX is properly administered. 
You may want to use busy port and release port commands to unlock things if 
features are not working.
Multimedia Call Handling
Multimedia Call Handling (MMCH) enables users to control voice, video, and 
data transmissions using a telephone and PC. Users can conduct video 
conferences and route calls like a standard voice call. They can also share PC 
applications to collaborate with others working from remote sites. 
Operations in Basic or Enhanced modes
There are two distinct levels of functionality: Basic and Enhanced. The Basic 
mode of operation treats a standard-protocol H.320 multimedia call as a data call. 
If the call is redirected, it is converted to a voice call. As a voice call, certain 
features are enabled, such as coverage, voice mail, and multiparty video 
conferencing. 
The Enhanced mode of operation allows a multifunction telephone to control a 
multimedia call as if it were a standard voice call. Spontaneous video 
conferencing, call forwarding, call coverage, hold, transfer and park, along with 
many routing features, are available to multimedia calls. Both modes of operation 
allow data collaboration between multiple parties using the T.120 standard 
protocol.  
						

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Definitions: MMCH features and components 
Multimedia call
A multimedia call, for MMCH, is one that conforms to the H.320 and T.120 suite 
of protocol standards. These standards allow video-conferencing packages from 
different vendors to communicate with one another. The capabilities of the 
individual multimedia-endpoint package can vary, however. 
nAn H.320 call can contain voice, video and data. 
nThe bandwidth for MMCH calls is limited to 2 B-channels.
Figure 9. MMCH multimedia complex
Basic multimedia complex
A Basic multimedia complex consists of a BRI-connected multimedia-equipped 
PC and a non-BRI-connected multifunction telephone administered in Basic 
mode. With a Basic multimedia complex, users place voice calls at the 
multifunction telephone and multimedia calls from the multimedia equipped PC. 
Voice calls will be answered at the multifunction telephone and multimedia calls 
will alert first at the PC and, if unanswered, will next alert at the voice station. A 
Basic multimedia complex provides a loose integration of the voice station and 
H.320 DVC system.
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Administrator’s Guide  555-233-506  Issue 1
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Enhanced multimedia complex
An Enhanced multimedia complex consists of a BRI-connected 
multimedia-equipped PC and a non-BRI-connected multifunction telephone 
administered in Enhanced mode. The Enhanced multimedia complex acts as 
though the PC were directly connected to the multifunction telephone. Thus, voice 
call control, multimedia call control and call status are enabled at the telephone. 
An Enhanced multimedia complex provides a tight integration of the voice station 
and H.320 DVC system.
Multimedia endpoint
The multimedia endpoint is a user’s PC that has been equipped with an H.320 
multimedia package. The PC is physically connected to the DEFINITY ECS with 
a BRI line.
Figure 10. Enhanced MMCH service link 
Enhanced mode service link
The service link is the combined hardware and software multimedia connection 
between the user’s multimedia endpoint and the DEFINITY ECS which 
terminates the H.320 protocol. The service link provides video, data, and, 
optionally, voice streams to augment the capabilities of the telephone and PC. A 
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service link only applies to an Enhanced multimedia complex, never to a Basic 
multimedia complex. The service link is administered on the station form and can 
be either “permanent” or “as-needed.” 
Feature Description
MMCH’s two levels of functionality for a multimedia complex, Basic and 
Enhanced mode, are enabled either by switch administration or by an mm-basic 
feature button or FAC.
Basic Mode Operation
In Basic Mode:
nAll voice-only calls originate at the voice station.
nAll multimedia calls originate with the H.320 DVC system. 
nAll incoming voice calls attempt to alert at the voice station and receive all 
standard voice call treatment.
nAll incoming H.320 multimedia calls attempt to alert on the H.320 DVC 
system initially. If answered, a 2-way video call will result. The Basic 
multimedia complex voice station will not be involved in the call in any 
way.
If the H.320 multimedia call is not answered at the H.320 DVC system and 
the Basic multimedia complex voice station has the H.320 field 
administered to “y”, the call will:
— timeout at the DVC system
— alert at the associated voice station set as a voice-only call
— receive all standard voice call treatment.
nCall control depends on what type of call is being originated. 
— Video is received and controlled at the PC. 
— Voice is received and controlled at the telephone set.
nThe voice station of a Basic multimedia complex must manually add their 
multimedia endpoint to a multimedia conference. There is limited support 
for multimedia feature interactions. A specific set of voice features work 
for multimedia calls.
nService Links are not used by Basic mode complexes.
nA single number may be used to reach the Basic multimedia complex for 
voice or H.320 multimedia calls.  
						

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Administrator’s Guide  555-233-506  Issue 1
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Enhanced Mode Operation
The Enhanced multimedia complex provides a much more tightly coupled 
integration of the complex voice station and H.320 DVC system. In Enhanced 
Mode:
nBoth multimedia and voice calls must originate at the telephone set.
nVoice and multimedia calls can be controlled at the telephone set.
nConferencing is spontaneous and established just like a voice-only 
conference call.
nThere is extensive support for multimedia feature interaction. Most voice 
features work the same for multimedia calls.
nService Links can be either “permanent” or “as-needed.”
Physical Installation
The physical components necessary to utilize MMCH capabilities include:
nH.320 DVC systems that are BRI connected to the DEFINITY ECS.
nNon-BRI multifunction telephones.
nDEFINITY TN787 MultiMedia Interface (MMI) and TN788 Voice 
Conditioner (VC) boards.
nA T.120 Enhanced Services Module (ESM) server (necessary only if you 
plan to do T.210 data collaboration). Connectivity of the ESM requires an 
additional TN787 along with a TN2207 DS1 circuit pack.
Dual Port Desktop
Both Basic and Enhanced multimedia complexes are dual-port desktops that 
consist of:
na BRI-connected multimedia-equipped PC that supports the H.320 protocol
na non-BRI-connected multifunction telephone set. 
The PC and the multifunction telephone are individually wired to the DEFINITY 
ECS. These two pieces of equipment can be administratively associated to form a 
Basic or ENHANCED multimedia complex 
MMCH works with any H.320 system that is fully H.320 compliant and operates 
at the 2B or 128K rate. 
NOTE:
If you intend to share applications among users or whiteboard capabilities, 
the endpoint software you choose must also support the T.120 protocol. 
						

							DEFINITY ECS Release 8.2
Administrator’s Guide  555-233-506  Issue 1
April 2000
Managing multimedia calling 
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The following endpoint-software packages have been tested:
nPictureTel PCS 50 & PCS 100, Release 1.6T
nProshare 2.0a, 2.1
nZydacron Z250 Ver. 2.02, Z350 Ver. 1.2 (With Netmeeting 2.0)
MMI & VC hardware
The MMCH feature requires the use of two additional circuit packs:
nMulti Media Interface (MMI) TN787J.
nVoice Conditioner (VC) TN788B.
The TN787 and TN788 are service circuit packs. The TN787 supports 
simultaneous operation of 16 2B H.320 calls. The TN788 supports the voice 
processing for 4 H.320 endpoints. 
nThese service circuit packs may be located in any Port Network. 
nThese packs do not require any translations as part of their implementation. 
nThe MMI and VC circuit packs are resource circuit packs akin to the Tone 
Detector circuit packs. 
nThese circuit packs require no switch administration and may be located in 
multiple port networks.
nSpecific provisioning guidelines for the number and placement of these 
packs can be found by calling the Lucent Technical Support Center (TSC) 
at (303) 850 - 8187. 
T.120 Data Collaboration Server
The Expansion Services Module (ESM) provides T.120 data collaboration 
capability on a MMCH multipoint H.320 video conference. 
nEach person in the conference who wants to participate in the data 
collaboration session, must have a personal computer with an H.320 video 
application that supports the T.120 protocol. 
nThe DEFINITY ECS must have an ESM installed. 
						

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ESM Installation
Figure Notes
Figure 11. Typical Multimedia Call handling ESM Connections
Use the following procedure and Figure 11 to connect to the ESM equipment:
1. Install the TN2207 primary rate interface (PRI) circuit pack and the TN787 
multimedia interface (MMI) circuit pack in the DEFINITY System port 
carrier. 
NOTE:
These two circuit packs should be co-located in the cabinet since they 
must be connected by a Y-cable on the back plane of the DEFINITY 
ECS.
2. Record the circuit pack locations.
3. Connect the ESM Y-cable as shown.
4. Administer the DS1 form and the signaling-group form for the ESM (see 
‘‘
ESM T.120 Server Administration’’ on page 247).
5. Configure the ESM adjunct. 1. Port B Y-cable connector to a TN787 
multimedia interface (MMI) circuit pack
2. Port A Y-cable connector to a TN2207 
PRI circuit pack 
3. 25-pair Y-cable
4. 356A adapter5. D8W cord connected to 356A 
adapter S/B port 8
6. Expansion service module 
(ESM)
7. Port B on compatible primary 
rate interface (PRI) card
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