Lucent Technologies DEFINITY Enterprise Communication Server Release 8.2 Administrators Guide

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provide dialtone after the first address has been completed. The user now 
dials the second destination address digits. The destination address may be 
provided by dialing digits, using abbreviated dial entries, last number 
dialed, etc. After the 2nd address has been collected the mm-multinbr 
status lamp will go off.
Originating a multimedia call with the mm-multinbr button will originate a 
call according to the Default Multimedia Parameters selected on the 
System Parameters Features form. This default parameter will be either 
2x56 or 2x64. The bearer capability of the multimedia calls will either be 
56K or 64K and the bandwidth will be 2B channels. 
NOTE:
The mm-multinbr feature button is generally used by stations that are 
part of an Enhanced multimedia complex, but may be used by any 
station to originate a dual address multimedia call.
4.
Multimedia Multi-number Call feature Access Code. For stations that do 
not have an administered mm-multinbr button, the Multimedia 
Multi-number call feature access code may be used instead. It allows 
origination of a multimedia call from a voice station. It is used when the 
destination being dialed requires a different address for each of the 2 
B-channels. An example of this is Central Office provided ISDN-BRI. This 
type of BRI line is provisioned with separate listed directory numbers for 
each B-channel. In order to make a 2B multimedia call to such a device, 
two sets of addresses must be entered. 
The user goes off-hook and dials the MM-multinbr feature access code. 
Upon dialing of the MM-multinbr FAC, the mm-call (if present) status 
lamp (green led) should become solid. The user now dials the first 
destination address digits. The destination address may be provided by 
dialing digits, using abbreviated dial entries, last number dialed, etc. The 
system will provide dialtone after the first address has been completed. The 
user now dials the second destination address digits. The destination 
address may be provided by dialing digits, using abbreviated dial entries, 
last number dialed, etc.
Originating a multimedia call with the MM-multinbr FAC will originate a 
call according to the Default Multimedia Parameters selected on the 
System Parameters Features form. This default parameter will be either 
2x56 or 2x64. The bearer capability of the multimedia calls will either be 
56K or 64K and the bandwidth will be 2B channels. 
NOTE:
The mm-multinbr FAC is generally used by stations that are part of an 
Enhanced multimedia complex, but may be used by any station to 
originate a dual address multimedia call. 
						

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5.Multimedia parameter selection feature access code. This FAC is used 
to originate a multimedia call that wishes to use a different bearer and 
bandwidth than the system default. For example, if the system has a default 
multimedia parameter of 2x64 and the user wishes to make a call to a 
destination that is known to only have 56K digital facilities, the MM 
parameter selection FAC can be used to select a bearer and bandwidth of 
2x56 for this specific call. 
The MM parameter selection FAC may be used in conjunction with the 
mm-multinbr button or FAC to make a single or dual address multimedia 
call at the desired bearer and bandwidth. The user goes off-hook and dials 
the MM-parameter selection feature access code. Dialtone is returned. The 
user enters a single digit, 1 or 2, where 1 = 2x64, 2 = 2x56. All other digits 
will produce reorder. Dialtone is returned. Upon dialing of the 
MM-parameter selection FAC, the mm-call (if present) status lamp (green 
led) should become solid. The user may indicate a dual-address call at this 
point with the mm-multinbr button or FAC. The user now dials one or two 
sets of destination address digits. The destination address may be provided 
by dialing digits, using abbreviated dial entries, last number dialed, etc. 
NOTE:
The mm-parameter selection FAC is generally used by stations that 
are part of an Enhanced multimedia complex, but may be used by any 
station to originate a dual address multimedia call.
6. Dialing sequences that include TACs, AAR, ARS, Authorization codes, 
CDR account codes, FRLS
1. Single address with TAC
nDial mm-call button or FAC, Hear dialtone
nDial TAC ,  Dial destination digits
2. Dual address with TAC
nDial mm-multinbr button or FAC, Hear dialtone
nDial TAC ,  Dial 1st dest. digits, Hear dialtone
nDial TAC ,  Dial 2nd dest. digits
3. Single address with AAR/ARS
nDial mm-call button or FAC, Hear dialtone
nDial AAR/ARS, Dial destination digits
4. Dual address with AAR/ARS
nDial mm-multinbr button or FAC, Hear dialtone
nDial AAR/ARS, Dial 1st dest. digits, Hear dialtone 
						

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nDial AAR/ARS, Dial 2nd dest. digits
5. Single address with AAR/ARS and authorization code
nDial mm-call button or FAC, Hear dialtone
nDial AAR/ARS FAC, Dial destination digits, Hear stutter 
dialtone
nDial authorization code
6. Dual address with AAR/ARS and authorization code
nDial mm-multinbr button or FAC, Hear dialtone
nDial AAR/ARS, Dial 1st dest. digits, Hear dialtone
nDial AAR/ARS, Dial 2nd dest. digits, Hear stutter dialtone
nDial authorization code
7. Single address with TAC or AAR/ARS and CDR account code
nDial mm-call button or FAC, Hear dialtone
nDial CDR FAC, Hear dialtone
nDial CDR account code, Hear dialtone
nDial TAC or AAR/ARS, Dial destination digits
8. Dual address with TAC or AAR/ARS and CDR account code
nDial mm-multinbr button or FAC, Hear dialtone
nDial CDR FAC, Hear dialtone
nDial CDR account code, Hear dialtone
nDial TAC or AAR/ARS, Dial 1st dest. digits
nDial TAC or AAR/ARS, Dial 2nd dest. digits
Answering
The user actions required to answer voice or multimedia calls at an Enhanced 
multimedia complex are identical if the H.320 DVC system is configured for 
auto-answer. If the H.320 DVC system is not configured for auto-answer an 
additional step is required. See answering multimedia calls below. 
It is 
recommended, but not required, that Enhanced mode complexes place their 
desktop video system into an auto-answer mode of operation. 
Answering voice calls
Incoming voice calls will alert at the voice station of the Enhanced multimedia 
complex in the normal manner. Standard alerting and call appearance flashing will 
occur. They are answered in the normal manner by selecting the alerting call 
appearance and going off-hook on the voice station. 
						

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Answering multimedia calls
Incoming multimedia calls will alert at the voice station of the Enhanced 
multimedia complex in the same manner as voice calls with one addition. If the 
alerting station has an administered mm-call button and the alerting call 
appearance is the selected call appearance (i.e. the red led is lit, on the alerting call 
appearance), then the mm-call button status lamp will go on indicating that the 
call on the selected call appearance is a multimedia call. 
The incoming multimedia call is answered in the normal manner by selecting the 
alerting call appearance and going off-hook on the voice station. If the H.320 
DVC system for the answering party is configured for auto-answer, no other 
action is needed to complete the multimedia call. If the H.320 DVC system for the 
answering party is not configured for auto-answer, the H.320 DVC system will 
alert and must also be answered by the user. 
It is recommended, but not 
required, that Enhanced mode complexes place their desktop video system 
into an auto-answer mode of operation. 
If the originating party is providing a video signal, then a complete 2-way 
multimedia call will exist. If the originating party is not providing a video signal, 
the answering party will receive loopback video. The audio signal will exist at the 
handset of the voice station. The audio signal may be moved to the H.320 DVC 
system via activation of a 
mm-pcaudio button on the voice station. 
Hourglass Tone. The answering party may hear different things when the 
incoming multimedia call is answered depending on the nature of the originator. If 
the origination is directly from an H.320 DVC system or if the originator is an 
Enhanced mode complex on a remote switch, an immediate audio path will not 
exist between the two parties. This is because the H.320 protocol must be 
established after the call is answered. It takes several seconds for the H.320 
protocol to establish an audio path. During this interval the answering party will 
hear special ringback. When the audio path exists the special ringback will be 
removed and replaced with a short “incoming call tone” indicating that audio now 
exists. The combination of special ringback followed by incoming call tone is 
referred to as 
“hourglass tone.” Hourglass tone is an indication to the answering 
party that they should wait for the H.320 call to establish audio.
Early Answer. The answering party may administer their station in such a way as 
to avoid hearing hourglass tone. If the station form has set the 
Early Answer field 
to 
y, then the system will answer the incoming multimedia call on behalf of the 
station and proceed to establish the H.320 protocol. After audio path has been 
established, the call will then alert at the voice station of the Enhanced mode 
complex destination. The station may then answer by going off-hook and will 
have immediate audio path. No hourglass tone will be heard by the answering 
party. 
						

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- multiple call appearance operation
With an Enhanced mode complex all calls to or from the complex are controlled 
via the voice station. Each voice or multimedia call has its own call appearance 
which may be selected without regard for the nature of the call using the specific 
call appearance. This allows a multifunction station to control multiple voice or 
multimedia calls in exactly the same way they would control multiple voice calls.
As an example, a user may originate a simple voice call on the first call 
appearance. A multimedia call may then arrive on the second call appearance. The 
user activates HOLD on the first call appearance and selects the second call 
appearance to answer the multimedia call. The user may then activate HOLD on 
the second call appearance and reselect the first call appearance or select a third 
call appearance and originate another call. 
- creating a multi-party video conference
An Enhanced multimedia complex can create a spontaneous video conference in 
the same way that a spontaneous voice conference is created. Given an active call, 
the user activates the CONFERENCE button. This puts the current call on HOLD 
and activates a new call appearance. The user makes a multimedia call according 
to the instructions for originating a multimedia call and then selects 
CONFERENCE to combine or merge the two call appearances. This results in a 
3-way conference. 
If all three parties are video equipped, then a 3-way video conference results. 
Conference members see the current speaker on video. The current speaker sees 
the last speaker on video. If one of the parties is not video equipped, then a 3-way 
audio conference exists and the two video equipped parties have 2-way video. The 
CONFERENCE action may be repeated until 6 parties have been conferenced 
together. The 6 parties may be any mix of voice or video, local or remote parties.
The following steps create a multi-party voice/video conference:
1. Enhanced mode complex station A originates a multimedia call to, or 
receives a multimedia call from, party B. Station A and party B have 2-way 
voice and video.
2. Station A, activates CONFERENCE.
3. Station A originates a multimedia call (i.e. uses the mm-call 
button/FAC/etc.) and dials the party to be added, Enhanced multimedia 
complex C.
4. Party C, answers the call from station A.
5. Station A selects CONFERENCE to complete the 3-way conference. 
Parties A,B and C will be in a 3-way voice/video conference. 
						

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NOTE:
If party C is another Enhanced mode complex on the same switch as 
station A
, station A does not need to indicate a multimedia call prior to 
dialing the new party in step 3. While A consults with C, the call will be 
audio only. When A completes the conference in step 5, party C’s video will 
be activated.
A multi-party video conference uses voice activated switching to determine which 
parties are seen. The current speaker is seen by all other parties. The current 
speaker sees the previous speaker.
Additional voice or video parties may be added by repeating these steps. 
Data Collaboration
Once you have established a multi-point video conference, multi-point T.120 data 
collaboration may be enabled for that call. This will allow all video parties on the 
current conference to collaborate.
T.120 Data conferencing is made possible through the Expansion Services 
Module (ESM) which is an adjunct to the DEFINITY ECS. Up to six parties may 
participate in a single data conference, and up to 24 parties may use ESM facilities 
for data collaboration at any given time. 
The following steps add data sharing to a video conference:
1. Set up a multimedia conference. 
2. Once a multimedia call is active, any member can initiate data 
collaboration by pressing the mm-datacnf button. Or, to use the feature 
access code to initiate a data conference, press the Transfer button. A 
second line-appearance becomes active and you hear dial tone. Dial the 
multimedia data conference feature access code. Confirmation tone is 
heard and the system automatically reselects the held call appearance of the 
multimedia conference. The DEFINITY ECS will select an MLP data rate 
which is acceptable to all H.320 DVC systems in the current call.
If the system does not have sufficient ESM resources available for all 
parties currently in the call, activation of T.120 data sharing will be denied. 
The mm-datacnf status lamp will flash denial or the mm-datacnf FAC will 
produce reorder.
3. Each H.320 DVC system in the conference call is joined to the data 
conference. On many DVC systems, the provided GUI may prompt the 
user with a dialog box, requesting the user to select a specific conference to 
join. With DEFINITY MMCH, there should only be one conference 
available to select. 
						

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4.The user must now use the PC’s GUI to begin application sharing. The 
method for beginning application sharing or file transfer is different for 
each H.320 multimedia application. One of the H.320 DVC systems 
activates data sharing from the H.320 DVC vendor provided GUI. See your 
H.320 DVC system documentation for details.
5. The same H.320 DVC system as in step 4, opens an application, 
whiteboard, etc. to share and the image of the application is displayed on 
all H.320 DVC systems in the conference.
For details on how multiple users may control the shared application, see 
the vendor provided documentation for your specific H.320 DVC system.
6. To end the data collaboration session and retain the voice/video conference, 
the station that selected the mm-datacnf button or FAC may press the 
mm-datacnf button or hit transfer and dial the mm-datacnf deactivation 
FAC .
NOTE:
Currently, many endpoints do not respond correctly to ending the data 
collaboration session and retaining voice/video. Some H.320 DVC 
systems drop the entire call. It is recommended that once T.120 data 
sharing has been enabled for a conference, that it remain active for 
the duration of the conference call. When all endpoints have dropped 
from the call, the T.120 resources will be released.
Joining a multimedia conference after T.120 data sharing has been enabled.  
If a multimedia conference with T.120 data sharing is already active and it is 
desired to conference in a new video endpoint, the new video endpoint can be 
conferenced into the existing call. The new endpoint will be allowed into the data 
conference if there exists sufficient ESM resources for the new endpoint. The new 
endpoint will get voice/video and data sharing if the new endpoint supports the 
data rate chosen by the system when T.120 data collaboration was activated. If the 
endpoint does not support the pre-existing data rate, the new endpoint will only 
receive voice and video.
Activating HOLD while on a T.120 data collaboration conference. 
If an Enhanced multimedia complex is active on a multimedia call and the call has 
activated T.120 data collaboration, the user should be receiving voice/video and 
data. If the station places this existing call on hold, audio and video will be 
disconnected for the current call. The data collaboration portion of the call will 
remain intact and unaffected. While this T.120 data conference is on hold, the user 
will only be allowed to receive audio on all other call appearances. Thus a user is 
limited to one call appearance that has T.120 data collaboration active. 
						

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Single switch data collaboration.  When all parties involved in data 
collaboration conference are located on the same physical DEFINITY ECS, there 
is no restriction on the type of user. The parties may be any combination of 
Enhanced multimedia complexes, Basic multimedia complexes or stand-alone 
H.320 DVC systems.
Multi- switch data collaboration.  When all parties involved in data 
collaboration conference are not located on the same physical DEFINITY ECS, 
the parties located on the DEFINITY ECS hosting the data conference (i.e. the 
switch that activated mm-datacnf) may be any combination of Enhanced 
multimedia complexes, Basic multimedia complexes or stand-alone H.320 DVC 
systems. 
NOTE:
All parties on remote switches must not be Enhanced multimedia 
complexes. They must be Basic multimedia complexes or stand-alone H.320 
DVC systems. 
Prior to originating or receiving a multimedia mode call, the mm-basic feature 
button or feature access code can be used to dynamically change an Enhanced 
mode complex into a Basic mode complex and back again.
Voice station audio vs. H.320 DVC system audio
When an Enhanced mode complex originates or receives a voice or multimedia 
call, the call is originated with the station handset or answered with the station 
handset. The audio path will be through the handset. If the user’s H.320 DVC 
system has speakers and a microphone, the user may wish to use the H.320 DVC 
system for audio in much the same manner as a built-in or separate telephone 
speakerphone. The user can move the station’s audio to the H.320 DVC system by 
selecting an 
mm-pcaudio feature button on the voice station. There is no feature 
access code for this function.
The mm-pcaudio feature button works very much like a speakerphone on/off 
button. If the station is off-hook and selects mm-pcaudio, audio is directed to the 
PC DVC system. The switch-hook may be placed on-hook. If the handset is taken 
off-hook, the audio moves back to the handset. If the mm-pcaudio button is 
selected while audio is already on the DVC system and the handset is on-hook, 
this acts as a speakerphone off action and disconnects the current call.
The mm-pcaudio feature button may be used for voice as well as multimedia calls. 
If the mm-pcaudio feature button is selected while on a voice only call, the DVC 
system is alerted and brought into the call. No video will be transmitted or 
displayed. Audio will be directed through the PC DVC system. 
						

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Switching between Basic and Enhanced modes
There may exist occasions when an Enhanced mode complex needs to switch to 
Basic mode operation temporarily. One example is when a user wishes to make a 
direct point to point multimedia call originated directly from the H.320 DVC. 
Basic mode operation allows this functionality at the expense of losing 
multimedia call handling capabilities (i.e. hold/xfer/conf). To switch from 
Enhanced mode to Basic mode, the station may either select a mm-basic feature 
button or dial the mm-basic feature access code. Both of these actions are valid 
only if the Enhanced mode station has no multimedia calls active. 
When in Basic mode, the status lamp for the mm-basic button, if present, will be 
on solid. The mm-basic feature button acts as a toggle. If the status lamp is on, 
when the button is selected, the lamp will go off and the station will return to 
Enhanced mode. The mm-enhanced feature access code will set the state of the 
station back to Enhanced. Switching to Enhanced mode is only valid if the 
associated H.320 DVC system is idle. 
NOTE:
Toggling between Basic and Enhanced mode changes the station’s 
administered Multimedia mode. When in Basic mode this field on the 
station form will show basic. When in Enhanced mode this field on the 
station form will show enhanced. The current station Multimedia mode 
will be saved to translation when a save translation command is 
executed.
Forwarding of voice and multimedia calls
The Enhanced multimedia mode complex voice station may use the existing 
standard call forwarding mechanisms to activate forwarding for voice calls. If the 
forwarding destination is on the same switch then this will also forward 
multimedia calls as multimedia calls to the destination. If the forwarding 
destination is off switch, multimedia calls will forward off switch as voice only 
calls. This is appropriate when the user will be at a location that is not able to 
receive multimedia calls.
To forward multimedia calls off switch as multimedia calls, the user must activate 
multimedia call forwarding. This may be done with an mm-cfwd button or feature 
access code. The user may also activate standard voice call forwarding and select 
the mm-call button prior to entering the forwarding address. 
Coverage
Multimedia calls to an Enhanced mode complex are subject to the same coverage 
criteria as voice calls and follow the coverage path administered for the voice 
station of the Enhanced multimedia mode complex. 
						

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If a plain voice station or a Basic mode complex is the covering party, the 
answering voice station will receive audio only. If all voice stations in the 
coverage path have the station form Early Answer field set to n and the originator 
of the multimedia call was not a local Enhanced mode complex, the answering 
station will hear hourglass tone.
If an Enhanced mode complex is the covering party, the answering voice station 
will receive voice and video. If all voice stations in the coverage path have the 
station form Early Answer field set to n and the originator of the multimedia call 
was not a local Enhanced mode complex, the answering station will hear 
hourglass tone.
Multimedia calls and off-net call coverage. If the principal station’s coverage 
path include a remote coverage point, the multimedia call will cover off-switch as 
voice only. If the call is unanswered off-switch and proceeds to the next coverage 
point on-switch, the multimedia nature of the call is preserved. 
Multimedia calls and coverage to voice mail.  Voice mail systems such as 
AUDIX are typically the last point in a coverage path and are usually 
implemented as a hunt group. In order to guarantee that the originator of an H.320 
multimedia call hears the voice mail greeting, the hunt group that defines the list 
of voice mail ports should have the Early Answer field on the hunt group set to y. 
This field will have no effect on voice calls to the voice mail system.
Hunt Groups using Enhanced Mode Complexes
When creating hunt groups with Enhanced multimedia mode complexes, only the 
station extension should ever be entered as a hunt group member. Any hunt group 
or ACD skill can include the voice station of an Enhanced multimedia complex as 
a member. The data extension of an Enhanced mode complex should never be 
entered as any hunt group member. A hunt group or skill may have a mix of 
members that are stand-alone stations and Enhanced mode complex stations. In 
order to guarantee that all members of the hunt group or skill can receive voice or 
multimedia calls, all members should have the H.320 field on the station form set 
to y. Simple voice stations will receive voice only. Enhanced mode stations will 
receive voice and video.
The MM Early Answer field (on the Hunt Group form) tells the system to answer 
an incoming multimedia call and establish audio before it reaches the first 
member of the hunt group. Thus, when the talk path is established, the caller is 
able to speak with an agent immediately.
Other considerations. CMS measurements may indicate unusually slow ASA, 
because of the time required for the system to establish early-answer before 
offering the call to an agent.