21
Operation
A. Outbound SIP Calls
When the hard wired switch connected to the “Trig In” wires is pressed, the
300TB-IP
speaker phone dials a pre-
programmed telephone or extension number. When the Panic Button Mode is enabled (see Programming section 25),
only emergency calls are possible. When the Panic Button Mode is disabled, the type of call (non-emergency or
emergency) depends on the length of time the button or switch is pressed. Momentarily pressing the button or switch
will initiate a non-emergency call. Holding the button or switch for 3 seconds or longer will initiate an emergency call.
The Call / Status LED will momentarily flash during dialing.
In the event the telephone or extension number is busy or there is ring-no-answer, the unit can be programmed to
redial the phone number. The unit then redials pre-programmed number until the call is answered or the programmed
Redial Count is met. When the call is answered, the
300TB-IP
’s will automatically light the “Status” LED to show that
handsfree communication to personnel is established. When the call has been answered and the Relay Mode is set
to Door Strike (see Programming section 20), any of the Operation Commands (see Operation section D) can be
entered or the # key can be dialed to force the speaker to hang up.
B. Inbound SIP Calls
How inbound SIP calls are handled depends on the Inbound Call Mode selected (see Programming section 35), the
current programming for Night Ring Timed Operation if enabled (see Programming section 17), the current time of day
and day of week. If Night Ring Timed Operation is disabled and the Inbound Call Mode is set to Auto Answer, the
300TB-IP
will automatically answer inbound calls, provides a Pre Page Alert Tone if enabled and allows paging and
talkback through the unit. When the Inbound Call Mode is set to Auto Answer – Secure, the
300TB-IP
auto answers
inbound calls but the party must dial the Access Code before they are allowed to page or receive talkback from the
unit. The Inbound Call Mode also has options that allow the unit to output a loud ring on any inbound SIP calls. The
Ring option outputs a fixed volume ring and is adjustable (see Programming section 28). The Ring with AGC option
makes the
300TB-IP
vary the volume of the loud ring based on the background noise around the unit. If Night Ring
Timed Operation is enabled and an inbound SIP call is received between the programmed start and stop times and the
current day is a programmed active day, the unit will automatically output a loud ring instead of following the Inbound
Call Mode programming. This allows for loud ring at certain times of the day/days of the week and paging with talkback
all other times/days of the week.
C. Multicast
The
300TB-IP
can be set to one of two modes for multicasting, Standard or Polycom. Polycom is only used when
Polycom IP phones are used. To change to Polycom multicast, go to the “Paging” tab and change the “Multicast Page
Type” to Polycom.
Standard Multicast Paging (Factory Setting)
Up to 10 multicast paging groups can be programmed into each unit and each group is assigned a priority level allowing
simultaneous arriving multicast pages to be handled based on importance. Low priority groups are often used for low
priority streams like background music and high priority groups are used for high priority streams such as emergency
messages. Group 0 is the highest priority, and Group 9 is the lowest. A timeout limit can be set and either enabled or
disabled for each multicast group. The volume of each group can be programmed and non-emergency SIP calls can
be assigned either higher or lower priority than all or some of the multicast groups (see Programming section 10).
Polycom Multicast Paging
Polycom phones send multicast audio to a specific IP address and port. A total of 25 groups can be used and groups
1 through 24 can individually be enabled/disabled in each
300TB-IP
. Group 25 is always enabled, as group 25 is
generally used for emergency broadcasts. Any multicast page made from a Polycom phone (on the same LAN) to the
programmed IP address, port and to an enabled group will play through the
300TB-IP
speaker. The priority of Polycom
sources ranges from group 1 (lowest) to group 25 (highest). Non-emergency SIP calls can be assigned either higher
or lower priority than Polycom group 1 through 24 multicast paging (see the table in programming section 11 for Polycom
paging priorities). Multicast page timeout can be enabled/disabled globally for groups 1 through 24 (there is no timeout
for group 25) and the length of the Multicast page timeout is adjustable. The volume for Polycom multicast is set globally
for all groups.
