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DEFINITY ECS Release 8.2
Administrator’s Guide
555-233-506
Issue 1
April 2000
Managing multimedia calling
250Understanding the multimedia complex
9
The voice station of a Basic multimedia complex may also use the “mm-call”
button or FAC, and the “mm-multinbr” button or FAC to originate multimedia
calls. When these methods are used, a multimedia call is originated from the voice
station. In order for the Basic multimedia complex to receive video, the user must
make a call from the H.320 DVC system to the voice station of the complex or
must make a multimedia call from the voice station to the H.320 DVC. This
allows the station to spontaneously add themselves or other parties to a
multimedia conference.
1.
H.320 DVC system GUI. The normal way for a Basic multimedia complex
endpoint to originate a multimedia call is through the vendor provided user
interface. Generally, digits to dial are entered, speed is selected and the call
originates from the DVC system. The voice station is not involved in such
as origination.
Any voice station may use the following mechanisms to originate a
multimedia call from the voice station. For stations that are not part of a
multimedia complex, video cannot be provided. For voice stations that are
part of a Basic multimedia complex, video is not provided until a
multimedia call is made from the complex’s H.320 DVC system to the
voice station or a multimedia call is made from the voice station to the
H.320 DVC system. Video is automatically included for Enhanced
multimedia complexes.
2.
mm-call (Multimedia Call) button. If the station has an mm-call button
administered, the user goes off-hook and selects the mm-call button. The
user may select the mm-call button and then go off-hook. If the user has a
speakerphone on the station, the user may originate the call simply by
selecting the mm-call button. The speakerphone will automatically be
placed off-hook and dialtone will be heard. Upon selection of the mm-call
button, the mm-call status lamp (green led) should become solid.
The user now dials the destination address digits. The destination address
may be provided by dialing digits, using abbreviated dial entries, last
number dialed, station busy indicators, etc. Originating a multimedia call
with the mm-call 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.
For calls with a bandwidth of 2B, use of the mm-call button to originate
will cause the same destination address to be used for both channels of the
2B call. See the section below on the mm-multinbr button/FAC for
information on originating a 2B call where the destination has a different
address for each B-channel.