viewstation h.323 with quad bri
the network setup screen (system info ] admin setup ] video network) shown in figure 2-7 provides four icons, which:
1 configure imux properties
2 configure isdn video network properties
3 set call preferences
4 set multi-point preferences (mp enabled systems only)
imux (inverse multiplexer):
on the imux screen (system info ] admin setup ] video network ] imux) the five icons as shown in figure 2-8 are:
1 numbers: sets isdn video numbers
2 spids: sets the service profile ids. spid numbers are assigned to every terminal device by the isdn provider. this is generally used in north america only
3 audio quality: adjusts the audio quality of a video call
4 advanced dialing: defines how a channel is dialed
5 dialing speeds: defines dialing speed available when a call is placed
numbers
the numbers screen (system info ] admin setup ] video network ] imux ] numbers) allows the viewstation administrator or the lan manager to enter the std or area code and the isdn video numbers for each isdn line.
1. enter the std or area code and press the down arrow on the remote control to continue to the next line.
2. enter the isdn phone number used for each line.
3. when complete, highlight the save icon and press the select button on the remote control.
service profile identifier
the service profile identifier screen (system info ] admin setup ] video network ] imux ] spids) or spids appears only if united states or canada is selected as the country. if the viewstation is connected to an internal phone system (pbx), a spid may not need to be entered.
if the viewstation is unable to find the spids, check the network connection and verify that the isdn numbers have been entered correctly.
1 enter the spid numbers provided by the isdn service provider.
2 if the viewstation is connected to a pbx, select the pbx icon. in some cases you may not need to locate spids.
3 to auto-detect spid numbers, highlight the start icon and press the select button on the remote control.
if this process is canceled, the viewstation reboots and the entire setup procedure must be redone.
audio quality
the audio quality preference screen (system info ] admin setup ] video network ] imux ] audio quality) allows the selection of an audio protocol. g.722 audio delivers a higher quality of audio than g.728 and uses 48 kbps of the call bandwidth. g.728 delivers telephone quality audio and only uses 16 kbps of the call bandwidth. g.728 is generally used for lower data rates.
to set the audio protocol, use the + and - zoom buttons on the remote control to move the slider.
changing the audio quality preferences during a call can be done only while in an h.320 call. no changes can be made while in an h.323 call.
advanced dialing
on the advanced dialing screen (system info ] admin setup ] video network ] imux ] advanced dialing) you can define how each isdn channel is dialed. by default, channels are dialed in parallel.
1 dial channels in parallel: when this option is selected, the viewstation dials all isdn channels simultaneously.
2 dial channels one at a time: when selected, the viewstation dials each isdn channel one at a time until all the channels are connected. this feature is used to overcome local network problems.
dialing speeds
the dialing speeds screen (system info ] admin setup ] video network ] imux ] dialing speeds) specifies the dialing speeds that are available when a call is placed.
highlight the circle to the right of a speed and press the select button on the remote control to select that speed. a red check mark appears on the dialing speeds screen when a speed is selected.
isdn video network
the isdn video network screen (system info ] admin setup ] video network ] isdn video network) contains information entered during system setup. the five user-configurable fields are:
country code: choose the country code associated with the country where the viewstation is used.
area code: choose the area code or std code where the viewstation is used.
number a: enter the primary isdn number assigned to the viewstation.
number b: enter the secondary isdn number assigned to the viewstation.
isdn switch protocol: select the appropriate isdn switch protocols. contact the isdn provider to determine the isdn switch protocol.
isdn dialing prefix: the isdn dialing prefix is used to access an outside line if the viewstation is connected to a pbx.
call preference
the call preference screen (system info ] admin setup ] video network ] call preference) shown in figure 2-15 determines how a video call is made. the two types of calls made are:
1 isdn video calls (h.320)
2 lan/internet calls (h.323)
isdn video calls (h.320):
1 checked: enables isdn videoconferencing on the viewstation.
2 not checked: disables isdn videoconferencing ability on the viewstation.
lan/internet calls (h.323):
1 checked: enables h.323 videoconferencing on the viewstation.
2 not checked: disables h.323 videoconferencing on the viewstation.
3 display ip dialing extension: the ip dialing extension is used if a viewstation uses the global address book (gab).
checked: the e.164 dialing extension is displayed when a video call is initiated in h.323 calls.
not checked: the e.164 dialing extension is not displayed when a video call is initiated in h.323 calls.
multi-point setup (mp enabled viewstations)
the multi-point setup screen determines which mode the multi-point feature is used. the modes are:
1 auto: the viewstation automatically switches between discussion and presentation mode.
2 discussion: this mode is also called the continuous presence. each site remains on the screen in a tiled arrangement.
3 presentation: the main presenter remains on the screen while each end point switches on and off.
4 full screen: whoever is speaking is viewed in full screen. when a new endpoint speaks, that endpoint appears full screen.
viewstation h.323 with avaya dcp
the network setup screen (system info ] admin setup ] video network) shown in figure 2-16 provides four icons which:
1 configure imux properties
2 configure dcp video network properties
3 set call preferences
4 set multi-point setup preferences (mp systems only).
figure 2-16. network setup screen (mp enabled viewstations only)
imux (inverse multiplexer):
on the imux screen (system info ] admin setup ] video network ] imux), the four icons as shown in figure 2-17 are:
1 numbers: sets dcp video numbers
2 audio quality: adjusts the audio quality of a video call
3 advanced dialing: defines how a channel is dialed
4 dialing speeds: defines dialing speed available when a call is placed.
numbers
the numbers screen (system info ] admin setup ] video network ] imux ] numbers) allows the viewstation administrator or the lan manager to enter the std or area code and the dcp video numbers for each dcp line.
1. enter the std or area code and press the down arrow on the remote control to continue to the next line.
2. enter the dcp phone number used for each line.
3. when complete, highlight the save icon and press the select button on the remote control.
audio quality
the audio quality preference screen (system info ] admin setup ] video network ] imux ] audio quality) allows the selection of an audio protocol. g.722 audio delivers a higher quality of audio than g.728 and uses 48 kbps of the call bandwidth. g.728 delivers telephone quality audio and only uses 16 kbps of the call bandwidth. g.728 is generally used for lower data rates.
to set the audio protocol, use the + and - zoom buttons on the remote control to move the slider.
changing the audio quality preferences in a call can only be done in an h.320 call. no changes can be made while in an h.323 call.
advanced dialing
on the advanced dialing screen (system info ] admin setup ] video network ] imux ] advanced dialing) you can define how each dcp channel is dialed. by default, channels are dialed in parallel.
1 dial channels in parallel: when this option is selected, the viewstation dials all dcp channels simultaneously.
2 dial channels one at a time: when selected, the viewstation dials each dcp channel one at a time until all the channels are connected. this feature is used to overcome local network problems.
dialing speeds
the dialing speeds screen (system info ] admin setup ] video network ] imux ] dialing speeds) specifies the dialing speeds that are available when a call is placed.
·highlight the circle to the right of a speed and press the select button to select that speed. a red check mark appears on the dialing screen when a speed is selected.
dcp video network
the dcp video network screen (system info ] admin setup ] video network ] dcp video network) contains information entered during system setup. the five user-configurable fields are:
country code: choose the country code associated with the country where the viewstation is used.
area code: choose the area code or std code where the viewstation is used.
number a: enter the primary dcp number assigned to the viewstation.
number b: enter the secondary dcp number assigned to the viewstation.
dcp switch protocol: select the appropriate dcp switch protocols. contact the dcp provider to determine the dcp switch protocol.
dcp dialing prefix: the dcp dialing prefix is used to access an outside line if the viewstation is connected to a pbx.
call preference
the call preference screen (system info ] admin setup ] video network ] call preference) shown in figure 2-23 determines how a video call is made. the two types of calls made are:
1 dcp video calls (h.320)
2 lan/internet calls (h.323)
dcp video calls (h.320):
1 checked: enables h.320 videoconferencing on the viewstation.
2 not checked: disables h.320 videoconferencing ability on the viewstation.
lan/internet calls (h.323):
1 checked: enables h.323 videoconferencing on the viewstation.
2 not checked: disables h.323 videoconferencing on the viewstation.
3 display ip dialing extension: the ip dialing extension is used if a viewstation uses the global address book (gab).
checked: the e.164 dialing extension is displayed when a video call is initiated in h.323 calls.
not checked: the e.164 dialing extension is not displayed when a video call is initiated in h.323 calls.
multi-point setup (mp enabled viewstations only)
the multi-point setup screen determines which mode the multi-point is used in. these modes are:
1 auto: the viewstation automatically switches between discussion and presentation modes.
2 discussion: this mode is also called the continuous presence. each site remains on the screen in a tiled arrangement.
3 presentation: the main presenter remains on the screen.
full screen: whoever is speaking is viewed in full screen. when a new endpoint speaks, that endpoint appears full screen.
viewstation 128
the network setup screen (system info ] admin setup ] video network) shown in figure 2-24 provides three icons, which:
1 set dialing speeds
2 configure video network properties
3 set call preferences
dialing speeds
the dialing speeds screen (system info ] admin setup ] video network ] dialing speeds) specifies the dialing speeds that are available when a call is placed.
highlight the box to the right of a speed and press the select button to select that speed. a red check mark appears on the dialing screen when a speed is selected.
isdn video network
the isdn video network screen (system info ] admin setup ] video network ] isdn video network) contains information entered during system setup. the six user configurable fields are:
country code: choose the country code associated with the country where the viewstation is used
area code: choose the area code or std code where the viewstation is used
number a: enter the primary isdn number assigned to the viewstation
number b: enter the secondary isdn number assigned to the viewstation
isdn switch protocol: select the appropriate isdn switch protocols. contact the isdn provider to determine the isdn switch protocol.
service profile ids (spids): the service profile identifiers screen (spids) appears only if united states or canada is selected as the country. if the viewstation is connected to an internal phone system (pbx), a spid might not need to be entered.
if the viewstation is unable to find the spids, check the network connection and verify that the isdn numbers have been entered correctly:
1 enter the spid numbers provided by the isdn service provider.
2 if the viewstation is connected to a pbx, select the pbx icon.
to auto-detect the spid numbers, highlight the start icon and press the select button on the remote control.
if this process is canceled, the viewstation reboots and the entire setup procedure must be redone.
isdn dialing prefix: the isdn dialing prefix is used to access an outside line if the viewstation is connected to a pbx.
viewstation h.323 with v.35
the network setup screen (system info ] admin setup ] video network) shown in figure 2-26 provides four icons which:
1 sets call preferences
2 configures video network preferences
3 sets video numbers
4 access the advanced v.35 setup features
call preference
the call preference screen shown in figure 2-27 determines how a video call is placed. the two types of video communications for the viewstation h.323 with v.35 are:
1 v.35 video calls
2 lan/internet (h.323) video calls
v.35 video calls: the v.35 video calls option shown in the first check box in fig ure 2-28 determines if v.35 calls are made from the viewstation.
1 checked: enables the v.35 videoconferencing for the viewstation h.323 with v.35.
2 not checked: disables the v.35 videoconferencing for the viewstation h.323 with v.35.
lan/intranet calls (h.323)
the lan/intranet calls option shown in the second check box in figure 2-27 determines if h.323 calls are made from the viewstation.
1 checked: enables h.323 videoconferencing for the viewstation.
2 not checked: disables h.323 videoconferencing for the viewstation.
display ip dialing extension
1 checked: displays the ip dialing extension used in h.323 video calls from and to the viewstation.
2 not checked: the ip dialing extension is not displayed for h.323 video calls.
video network for v.35
the video network screen shown in figure 2-28 is used to configure the following properties:
1 rs-366 dialing
2 v.35 ports used
3 dialing protocol
4 broadcast mode
rs-366 dialing:
1 checked: rs-366 dialing dials from the viewstation through the dce connection to the far end videoconference system.
2 not checked: rs-366 dialing is disabled. this option must be not checked if the dce is used to dial the call or if a far site is connected by a direct connection.
if the rs-366 dialing option is enabled, select dialing speeds and set dialing prefixes and suffixes (see “advanced dialing” on page 61).
v.35 ports used:
1 1: if the viewstation is used to place 1-channel video calls, select 1.
2 1+2: if the viewstation is used to place 2x56 kbps or 2x64 kbps channel video calls, select 1+2.
dialing protocol: rs-366 appears as the dialing protocol if the rs-366 dialing option is enabled. if the rs-366 dialing option is disabled, the dialing protocol does not appear.
broadcast mode: enable or disable h.331 broadcast mode if the viewstation is connected to the network via satellite.
dialing speeds: if rs-366 dialing was enabled, select the speed used when placing a call on the dialing speeds screen. the default speeds are:
1 2x64 kbps
2 256 kbps
3 384 kbps
4 512 kbps
5 768 kbps
to add or remove speeds:
1 highlight the desired data rate.
2 press the select button on the remote control.
3 a red check appears when a dialing speed is selected.
the selected dialing speeds apply only to rs-366 calls. nx56 and nx64 are for h.320 calls, while ipx56 and ipx64 are for h.323 calls. for nondialed calls the call speed is determined by the dce.
broadcast mode setup: the viewstation v.35 supports h.331 broadcast mode, used for broadcast transmissions via satellite. in broadcast mode the viewstation sends and receives audio and video, without handshaking, to many viewstations or other h.331-compatible systems, such as large satellite network. when enabled in the video network screen, the broadcast mode setup satellite icon appears.
video format:
1 select qcif to transmit quarter common interchange format (176x144 resolution)
2 select fcif to transmit full cif (352x288 resolution)
video protocol: select a video standard
1 h.261
2 h.263
far-end systems which support the h.263 standard can receive h.263. for far-end systems that support h.261 only, the viewstation automatically adjusts to accommodate h.261 video.
audio mode: select the preferred audio protocol for transmitting audio:
1 g.728
2 g.711u
3 g.711a
4 g.722-56
5 g.722-48
6 off
frame rate: select the preferred video frame rate for the broadcast transmission:
1 30 fps
2 15 fps
3 10 fps
4 7.5 fps
broadcast configuration parameters should be set to accommodate the lowest common denominator of the systems that are receiving the broadcast. for example, if one system in the conference supports h.261 only, broadcast should be set to h.261 to ensure all systems participate in the conference.
advanced dialing: if rs-366 dialing is enabled, the dialing prefixes are sent for calls from the viewstation v.35 as numbers and characters to the dce before sending the number to be dialed. dialing suffixes define the dialing speed of the dce equipment. this provides the users with the capability to select a dialing speed when placing a call.
prefixes and suffixes are a function of the dce. consult the dce user guide for additional information.
video numbers
the v.35 video numbers screen is used in rs-366 dialing.
1 enter area code.
2 enter the isdn video number in line 1 b1.
3 enter the isdn video number in line 1 b2.
4 highlight the save icon and press the select button on the remote control.
advanced v.35 setup
the advanced v.35 setup screen (shown in figure 2-32) is used to configure the input and output signaling to and from the v.35 network interface module. for a complete technical description of the advanced v.35 setup, see "v.35 technical information" on page 193.
