Chapter 19 Cisco CallManager Device Mobility

Introducing Device Mobility

3.If the device pool in the phone record matches the device pool in the matching subnet, the system considers the phone to be in its home location, and the phone retains the parameters of its home device pool.

4.If the device pool in the phone record does not match the device pools in the matching subnet, the system considers the phone to be roaming and subject to reregistration and reapplication of device parameters. Table 19-1describes the possible conditions that can arise and the system responses.

Table 19-1 Device Mobility Conditions and Responses

 

 

 

Condition

System Response

 

 

 

 

 

 

 

 

The physical location of the phone’s home

The system does not consider the

 

 

 

device pool stays the same as the physical

phone to be roaming, and the

 

 

 

location of the device pools that are

phone remains registered with the

 

 

 

associated with the matching subnet.

home device pool.

 

 

 

Note Although the phone may have

 

 

 

 

 

moved from one subnet to another,

 

 

 

 

 

the physical location and

 

 

 

 

 

associated services have not

 

 

 

 

 

changed.

 

 

 

 

 

 

 

 

 

 

The matching subnet has a single device

The system considers the phone to

 

 

 

pool that is assigned to it; the device pool

be roaming. It reregisters with the

 

 

 

differs from the phone’s home device pool,

parameters of the device pool for

 

 

 

and the physical locations differ.

the matching subnet.

 

 

 

 

 

 

 

 

The physical locations differ, and the

The system considers the phone to

 

 

 

matching subnet has multiple device pools

be roaming. The new device pool

 

 

 

assigned to it.

gets assigned according to a

 

 

 

 

round-robin rule. Each time that a

 

 

 

 

roaming devices comes in to be

 

 

 

 

registered for the subnet, the next

 

 

 

 

device pool in the set of available

 

 

 

 

device pools gets assigned.

 

 

 

 

 

 

 

 

Physical location gets defined for the home

The physical location has not

 

 

 

device pool but is not defined for the

changed, so the phone remains

 

 

 

device pools that are associated with the

registered in the home device pool.

 

 

 

matching subnet

 

 

 

 

 

 

 

 

 

 

Cisco CallManager Features and Services Guide

 

 

 

 

 

 

19-6

 

 

 

O-8637-01

 

 

 

 

 

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Cisco Systems O-8637-01 manual Condition System Response, 19-6
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O-8637-01 specifications

Cisco Systems O-8637-01 is a versatile, high-performance networking solution designed to meet the demands of modern enterprise environments. This device serves as a crucial component in managing network traffic efficiently while ensuring security and reliability across various applications.

One of the main features of the O-8637-01 is its robust data handling capability, which allows it to support high-speed data transfer, crucial for businesses that rely on real-time applications such as video conferencing, VoIP, and cloud services. This unit is equipped with advanced routing capabilities that optimize data paths and minimize latency, ensuring quick response times and seamless user experiences.

The O-8637-01 employs cutting-edge technologies including advanced Quality of Service (QoS) mechanisms that prioritize critical network traffic, ensuring that essential applications receive the bandwidth they need for optimal performance. This feature is particularly important in environments where multiple applications compete for network resources. Additionally, the device supports various networking standards and protocols, enabling interoperability with existing infrastructure while providing future-proofing against rapidly evolving technology landscapes.

Security is a paramount aspect of the Cisco O-8637-01. It includes an integrated firewall and advanced threat detection systems designed to protect sensitive data and maintain network integrity. The use of Cisco’s own security protocols along with options for Virtual Private Network (VPN) connections allows organizations to secure communication over potentially unsafe networks, further enhancing data safety.

Another notable characteristic of the O-8637-01 is its modular design. This allows organizations to expand their networking capabilities incrementally as their needs grow, without the need for complete system overhauls. The device can accommodate various modules that provide additional ports, bandwidth, and functionalities, ensuring that the networking solution evolves alongside the organization’s changing landscape.

In conclusion, Cisco Systems O-8637-01 stands out as a powerful and adaptable solution for any enterprise needing robust networking capabilities. With its focus on performance, security, and scalability, it provides the tools necessary for businesses to succeed in an increasingly digital world.
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