Avaya Communication Manager Administrator's Manual page 368

Managing MultiMedia Calling
Originating voice calls
All voice calls are originated at the voice station.
Originating multimedia calls
For a Basic mode complex, multimedia calls are normally originated at the user's multimedia
equipped PC. These multimedia calls use the associated station's COR/COS.
The voice station of a Basic multimedia complex can 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 can 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 can select the mm-call button
and then go off-hook. If the user has a speakerphone on the station, the user can 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 can 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 Feature-Related System Parameters
screen. 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. The section below on the
mm-multinbr button/FAC provides information on originating a 2B call where the
destination has a different address for each B-channel.
368 Administrator Guide for Avaya Communication Manager