Chapter 2 Preparing to Install the Cisco Unified IP Phone on Your Network

Understanding the Phone Startup Process

You have enabled auto-registration in Cisco Unified Communications Manager

The phone has not been added to the Cisco Unified Communications Manager database

The phone is registering for the first time

If auto registration is not enabled and the phone has not been added to the Cisco Unified Communications Manager database, the phone registration request will be rejected.

If the phone is registered and working in encrypted mode, the phone accesses the configuration file named SEPmac_address.cnf.xml.enc.sgn. If the SEPmac_address.cnf.xml.enc.sgn does not exist on the TFTP server, the phone requests for the file SEPmac_address.cnf.xml.sgn. That is, if phone works in encrypted mode with TFTP Encrypted Config selected, the phone accesses the configuration file named SEPMac_addr.cnf.xml.enc.sgn if it is not chosen, SEPMac_addr.cnf.xml.sgn is chosen. To enable TFTP Encrypted Configuration, select the TFTP Encrypted Config check box Phone Security Profile Configuration page. You can access this page from the Cisco Unified CM Administration UI by selecting System > Security> Phone Security Profile and then clicking Add New.

For SIP phones, the TFTP server generates these SIP configuration files:

SIP IP Phone:

For unsigned and unencrypted files—SEP<mac>.cnf.xml

For signed files—SEP<mac>.cnf.xml.sgn

For signed and encrypted files—SEP<mac>.cnf.xml.enc.sgn

Dial Plan—<dialplan>.xml

The filenames are derived from the MAC address and description fields in the Phone Configuration window of Cisco Unified Communications Manager Administration. The MAC address uniquely identifies the phone.

For more information on phone configuration settings, go to the Cisco Unified IP Phone Configuration chapter in the Cisco Communications Manager Administration Guide.

Understanding the Phone Startup Process

When connecting to the VoIP network, the Cisco Unified IP Phone 6901 and 6911 go through a standard startup process that is described in Table 2-3. Depending on your specific network configuration, not all of these steps may occur on your Cisco Unified IP Phone.

Table 2-3

Cisco Unified IP Phone Startup Process

 

 

 

 

 

Task

Purpose

Related Topics

 

 

 

1.

Obtaining Power from the Switch

Adding Phones to the Cisco

 

If a phone is not using external power, the switch provides in-line power

 

Unified Communications

 

 

Manager Database, page 2-7.

 

through the Ethernet cable attached to the phone.

 

 

 

Resolving Startup Problems,

 

 

 

 

 

page 7-1.

 

 

 

2.

Configuring VLAN

Configuring Settings on the

 

If the Cisco Unified IP Phone is connected to a Cisco Catalyst switch, the

 

Cisco Unified IP Phone,

 

 

page 4-1.

 

switch next informs the phone of the voice VLAN defined on the switch.

 

 

 

 

 

The phone needs to know its VLAN membership before it can proceed with

Resolving Startup Problems,

 

the Dynamic Host Configuration Protocol (DHCP) request for an IP address.

 

page 7-1.

 

 

 

 

Cisco Unified IP Phone 6901 and 6911 Administration Guide for Cisco Unified Communications Manager 8.5 (SCCP and SIP)

2-6

OL-23874-01

 

 

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Cisco Systems 6901 manual Understanding the Phone Startup Process, Purpose Related Topics

6901 specifications

Cisco Systems 6901 is a versatile, compact, and powerful router designed to meet the networking needs of small to medium-sized businesses, as well as enterprise branch offices. This model is part of Cisco's ISR (Integrated Services Router) portfolio, which is known for its capability to integrate multiple services into a single platform, ensuring high efficiency and cost-effectiveness.

One of the main features of the Cisco 6901 is its ability to support advanced routing protocols, including RIP, EIGRP, OSPF, and BGP. This versatility allows for seamless integration into various network architectures, facilitating efficient communication and data transfer across multiple locations. The device is also built to handle high-bandwidth applications, making it an ideal choice for businesses that rely on robust network performance.

In terms of connectivity, Cisco 6901 offers multiple Ethernet ports, supporting both 10/100/1000 Mbps speeds. This ensures that users can connect a variety of devices, ranging from office computers to network printers, all while maintaining optimal network performance. Additionally, the router supports both LAN and WAN interfaces, providing flexibility in deployment options.

Security is a crucial aspect of networking, and the Cisco 6901 does not disappoint in this regard. It comes equipped with advanced security features, including firewall capabilities, intrusion prevention, and VPN support. These features ensure that sensitive business data is protected from unauthorized access, while also providing secure remote access for employees.

Another essential characteristic of the Cisco 6901 is its support for various multimedia applications. The router comes with Quality of Service (QoS) features that prioritize voice, video, and data traffic, ensuring high-quality performance for applications such as VoIP and video conferencing. This is particularly valuable in today's business landscape, where effective communication is critical for success.

The Cisco 6901 is also designed for ease of management and configuration. It features a user-friendly interface that simplifies the setup process, along with comprehensive monitoring tools that enable administrators to keep an eye on network performance and address any issues proactively.

In summary, the Cisco Systems 6901 is a powerful, feature-rich router that combines advanced routing capabilities with robust security measures and multimedia support. Its flexibility, ease of management, and comprehensive service integration make it an excellent choice for businesses seeking to enhance their networking infrastructure. With the Cisco 6901, organizations can achieve efficient communication, secure data exchange, and high-performance network operations, positioning themselves well for future growth.