User's Manual

ROAMEO System Basic Operation 85
Bosch Security Systems, Inc.
Technical Manual
F.01U.306.750
Rev. 01
Call Waiting Window
The CWW (Call Waiting Window) function is similar to traditional call waiting where up to four calls can be received and
answered by the beltpack. The maximum number of calls stacked in the call waiting queue is four.
IMPORTANT: Only one call can be active at a time. To answer calls in the call waiting queue, the active call must be
released. Once the active call is released, the next call in the queue can begin.
When a call is received at a beltpack that is already engaged in a call, an audible chirp is heard and the alpha shown in the
CWW window begins to blink. The alpha tally and audible chirp continue for 15 seconds and then stops. However, the call is
still waiting to be answered. Once the first call is released, the second call is active and its alpha is seen in the CWW window.
Unassigned caller calls, another unassigned caller calls
When an unassigned call is received by the beltpack and a second unassigned call comes in:
• The alpha of the first call blinks in the CWW window and, if configured, an audible chirp is heard in the
headset until the call is answered or until the first call is released and the second caller is engaged.
Unassigned caller calls, an assigned caller calls
When an unassigned call is received by the beltpack and a second assigned call comes in:
• The alpha of the first call blinks in the CWW window and, if configured, an audible chirp is heard in the
headset until the call is answered or until the first call is released.
• Additionally, the red LED button associated with the assignment blinks, letting the beltpack user know
an assigned call is waiting in the queue.
RSTP
RSTP (Rapid Spanning Tree Protocol) is a fault tolerant Ethernet protocol, which allows the system to be set up with multiple
Ethernet connection paths to the same access points. This provides a redundant connection if one connection path fails. The
RSTP connection paths prevent the possibility of packets getting into an infinite loop. RSTP is an IEEE standardized network
protocol (802.1w) ensuring a loop-free topology for any Ethernet LAN (Local Area Network), evolved from STP (Spanning
Tree Protocol). OMNEO fully supports RSTP IEEE802.1w.
When using switches that also support this technology, it is possible to create redundancy loops even with daisy-chained
devices. It is needed to adjust the RSTP parameters of the switch to do this according to the following:
Hello Time: 9 seconds
Maximum Age: 22 seconds
Forward Delay: 30 seconds
This is supported by the major brand switches.
The root bridge of a Spanning Tree is automatically elected by means of the root priority. When all root priorities in a system
are equal, the MAC Address of the system is used as a determiner. In general, OMNEO devices are not meant to become a root
bridge, therefore by default, the root bridge priority advertised is a higher root bridge priority value (less important) than other
network equipment. The OMNEO RSTP Root Bridge Priority is between 45056 and 61440 (default RSTP root priority is
32768) depending on the product.
When using RSTP care must be taken when designing the network. The maximum age parameter defines the maximum
number of hops seen from the Root Bridge; the same spanning tree information is valid and can be used. Devices which are not
in range of this specified maximum age are not part of the spanning tree and are not reachable in the network.