Cisco IP Phone 7905G Administration Guide for H.323
Installing the Cisco IP Phone 7905G for H.323

Table Of Contents

Installing the Cisco IP Phone 7905G for H.323

Prerequisites

Safety Recommendations

Understanding the Phone Startup Process

Obtaining Power from the Switch

Loading the Stored Phone Image

Configuring VLAN

Obtaining an IP Address

Accessing TFTP Server

Providing Power to the Cisco IP Phone

Power Source Design

Redundancy Feature

Connecting a Handset to a Cisco IP Phone

Assigning Static IP Addresses

Installing the Cisco IP Phone 7905G

Physical Installation of Cisco IP Phone 7905G

Mounting the Phone to the Wall

Connecting Cisco IP Phone 7905G to the Network

Basic Configuration of the Cisco IP Phone 7905G

Preconfiguration Before Shipping

Manual Configuration After Installation

Verifying Installation


Installing the Cisco IP Phone 7905G for H.323


This chapter provides information about installing the Cisco IP Phone 7905G at the end-user location. It includes the following sections:

Prerequisites

Safety Recommendations

Installing the Cisco IP Phone 7905G

Prerequisites

The Cisco IP Phone 7905G acts as an endpoint on an IP telephony network, and has the following network requirements:

Ethernet connection to an H.323 network with gatekeepers, gatekeeper zones, gateways, and billing servers, as required

Trivial File Transfer Protocol (TFTP) server for storing IP phone profiles

Dynamic Host Configuration Protocol (DHCP) server, if desired


Note If you use a firewall, Cisco recommends that it be a Cisco PIX firewall, Version 5 or later.


Safety Recommendations

To ensure general safety, follow these guidelines:

Do not open or disassemble this product.

Do not get this product wet or pour liquids into this device.

Do not perform any action that creates a potential hazard to people or makes the equipment unsafe.


Warning Ultimate disposal of this product should be handled according to all national laws and regulations. To see translations of the warnings that appear in this publication, refer to the Regulatory Compliance and Safety Information document that accompanied this device.



Warning Read the installation instructions before you connect the system to its power source. To see translations of the warnings that appear in this publication, refer to the Regulatory Compliance and Safety Information document that accompanied this device.



Warning The plug-socket combination must be accessible at all times because it serves as the main disconnecting device. To see translations of the warnings that appear in this publication, refer to the Regulatory Compliance and Safety Information document that accompanied this device.



Warning Do not work on the system or connect or disconnect cables during periods of lightning activity. To see translations of the warnings that appear in this publication, refer to the Regulatory Compliance and Safety Information document that accompanied this device.



Warning This equipment is to be installed and maintained by service personnel only as defined by AS/NZS 3260 Clause 1.2.14.3 Service Personnel. To see translations of the warnings that appear in this publication, refer to the Regulatory Compliance and Safety Information document that accompanied this device.



Warning This product relies on the building's installation for short-circuit (overcurrent) protection. Ensure that a fuse or circuit breaker no larger than 120 VAC, 15A U.S. (240 VAC, 10A international) is used on the phase conductors (all current-carrying conductors). To see translations of the warnings that appear in this publication, refer to the Regulatory Compliance and Safety Information document that accompanied this device.



Warning The device is designed to work with TN power systems. To see translations of the warnings that appear in this publication, refer to the Regulatory Compliance and Safety Information document that accompanied this device.


Understanding the Phone Startup Process

When connecting to the VoIP network, Cisco IP Phone 7905G goes through a standard startup process comprised of six steps. Depending on your specific network configuration, not all of these steps may occur on your Cisco IP Phone 7905G.

Each of these steps is described in the sections that follow:

Obtaining Power from the Switch

Loading the Stored Phone Image

Configuring VLAN

Obtaining an IP Address

Accessing TFTP Server

Providing Power to the Cisco IP Phone

Obtaining Power from the Switch

You can connect the Cisco IP Phone 7905G to a Cisco Catalyst switch with one of the modules that provides power to the phone (WS-X6348-RJ45V). See the "Providing Power to the Cisco IP Phone" section for details.

If you use this optional configuration, the phone receives phantom inline power and powers up when you connect the Cisco IP Phone 7905G to the switch. The phone then sends Cisco Discovery Protocol (CDP) notifications to the switch indicating it is ready to receive CDP packets and indicating the power requirement for the phone. The switch allocates power and sends it over the ethernet cable.

Loading the Stored Phone Image

The Cisco IP Phone 7905G has non-volatile Flash memory in which it stores firmware images and user-defined preferences. At startup, the phone runs a bootstrap loader that loads a phone image stored in Flash memory. Using this image, the phone initializes its software and hardware.

Configuring VLAN

If the Cisco IP Phone 7905G is connected to a Cisco Catalyst switch and VLAN is enabled, the phone sends a request. The switch sends the VLAN ID back to the the phone. If there are no CDP responses after three seconds, the Cisco IP Phone 7905G proceeds as if there is no VLAN.

Obtaining an IP Address

If the Cisco IP Phone 7905G is using DHCP to obtain an IP address, the phone queries the DHCP server to obtain an IP address, subnet mask, primary and secondary DNS server, primary and secondary TFTP server and default route. If you are not using DHCP in your network, you must assign static IP addresses to each phone locally.

Accessing TFTP Server

The TFTP server is use to provision the phone for use. It stores a profile for each Cisco IP Phone 7905G. The profile has configuration information and instructions for the phone to download new firmware. See Chapter 3, "Configuring the Cisco IP Phone 7905G" for more information on configuring the phone.


Note If the phone has a statically defined IP address, you must configure the TFTP server locally on the phone; the phone then contacts the TFTP server directly.


Providing Power to the Cisco IP Phone

You can power a Cisco IP Phone from an external power supply, from a switch port, or from a power source between the phone and the switch.

The Cisco IP Phone can be powered by the following sources:

External power source—optional Cisco AC adapter and power cord for connecting to a standard wall receptacle.

WS-X6348-RJ45V 10/100 switching module—inline power provider to the Cisco IP Phone when connected to a Catalyst 6000 family 10/100BaseTX switching module.

This module sends power on pins 1 & 2 and 3 & 6, which are also used to transmit Ethernet signals. Before the switch sends power, it tests for the presence of a Cisco IP Phone, avoiding damage to other Ethernet devices.


Note Only the network port supports inline power from the Cisco Catalyst switches.


WS-PWR-PANEL—power patch panel that allows the Cisco IP Phone to be connected to existing Catalyst 4000, 5000, and 6000 family 10/100BaseTX switching modules.

This module sends power on pins 4, 5, 7, & 8, which are not used for Ethernet signaling. Like the inline power, the power patch panel also attempts to verify that the attached device is a Cisco IP Phone before providing power.

Power Source Design

The phone and switch automatically determine which power source the phone uses. If the power has to be switched to a different source, the phone user will experience different results based on which power source is being used by the phone.

Use the following information to choose a power source for the phone:

If you plug a phone into the optional power supply before plugging it into the network, the phone is powered by the power supply.

If you then unplug the phone from the power supply, the phone resets. If the switch port is configured for 10/100 Mbps, the switch recognizes the loss of power and brings the phone back up.

If the switch port is configured for 10 Mbps only, then you must unplug the network connection and plug it back into the phone for the switch to recognize the phone's loss of power.

If, however, you plugged the network connection into the phone before you plugged in the power cord, the phone receives power through the switch, and unplugging the power cord will not bring down the phone. If the switch reboots, the phone will then be powered by the power cord.

Redundancy Feature

For redundancy, you can use the Cisco AC adapter even if you are using inline power from the Cisco Catalyst switches. Cisco IP Phone 7905G can share the power load being used from the inline power and external power source. If either the inline power or the external power goes down, the phone can switch entirely to the other power source.

To use this redundancy feature:

1. Set the inline power mode to auto on the Cisco Catalyst switch.

2. Connect the unpowered Cisco IP Phone to the network.

3. Connect the external power supply to the phone after the phone powers up.

Connecting a Handset to a Cisco IP Phone

All Cisco IP Phones include a handset designed especially for use with a Cisco IP Phone. These handsets are interchangeable among Cisco IP Phone models. The handsets include a light strip used to indicate voice mail messages.

To place and answer calls using a handset, plug the included handset into the back of the phone base and pick up the handset.

Assigning Static IP Addresses

If you do not use DHCP in your network, you must assign static IP addresses to each phone. You must configure each phone locally.

Installing the Cisco IP Phone 7905G

You must install hardware and configure software on the Cisco IP Phone 7905G before the phone can be used. Hardware installation consists of connecting the phone to its related handset, power and network connections. Software installation consists of entering a basic configuration on the phone, so that the phone can download its working profile from the TFTP server. This basic configuration can be preprogrammed on the phone before it is shipped to the end user, or it can be performed by the end user when the phone is installed.

Installation of the Cisco IP Phone 7905G is described in the following sections:

Physical Installation of Cisco IP Phone 7905G

Connecting Cisco IP Phone 7905G to the Network

Basic Configuration of the Cisco IP Phone 7905G

Verifying Installation

Physical Installation of Cisco IP Phone 7905G

Each Cisco IP Phone 7905G package includes the following:

Cisco IP Phone 7905G

10/100BASE-T category-3 (or better) Ethernet cable

Cisco IP Phone 7905G At A Glance

Regulatory Compliance and Safety Information for the Cisco IP Phone 7900 Series

Refer to Figure 2-1 as you install the Cisco IP Phone 7905G.

Figure 2-1 Cisco IP Phone 7905G Rear Panel Connectors

1

Network port (10 Base-T)

4

Power supply with DC output connector (optional)

2

Handset port

5

AC Power cable with wall socket plug (optional)

3

DC adapter port (DC48V) (optional)

   

Mounting the Phone to the Wall

You can mount the Cisco IP Phone on the wall using special brackets available in a Cisco IP Phone wall mount kit. A wall mount kit must be ordered separately from the phone.

Before You Begin

To ensure that the handset attaches securely to a wall-mounted phone, remove the handset wall hook from the handset rest, rotate the hook 180 degrees, and reinsert the hook. Turning the hook exposes a lip on which the handset catches when the phone is vertical. For an illustrated procedure, see Installing the Wall Mount Kit for the Cisco IP Phone.

Connecting Cisco IP Phone 7905G to the Network


Note Use a crossover Ethernet cable to connect the phone directly to another Ethernet device (such as a router or PC). Otherwise, use a straight-through Ethernet cable to connect the phone to a hub or switch.



Note Do not use hooded cables with the Cisco IP Phone 7905G as they can cause the phone to rock.


To install the Cisco IP Phone 7905G, complete the following steps:


Warning To avoid electric shock, do not connect safety extra-low voltage (SELV) circuits to telephone-network voltage (TNV) circuits. LAN ports contain SELV circuits, and WAN ports contain TNV circuits. Some LAN and WAN ports both use RJ-45 connectors. Use caution when connecting cables. To see translations of the warnings that appear in this publication, refer to the Regulatory Compliance and Safety Information document that accompanied this device.



Step 1 Connect the network port on the back of your phone to the switch using a Category 3 or Category 5 ethernet cable.

Step 2 Connect the handset to the handset port. Ensure that the end of the cord with the longer uncoiled section is connected to the body of the phone.

Step 3 Connect the power supply plug to the 48V DC adapter port on the back of the phone (Optional).

Step 4 Route the cables through the holes in the footstand.


After the phone is connected to its power source, a startup process begins. After several minutes, the LCD displays a neutral "ready" screen. The details on the screen might vary, but a ready screen typically displays the date and time, extension number, and available softkeys. Startup is complete and the phone is ready to use.

Softkeys point to feature options displayed along the bottom of the LCD screen. Softkeys are flexible—they change depending on the status of the phone. For example, one set of softkey options is displayed when the handset is picked up, and another set is displayed when the phone is not in use.

If the phone was preprogrammed with its basic configuration, it begins to automatically download its complete operating profile from the TFTP server. Initial preloaded bootload firmware is upgraded to firmware that supports a specific signalling protocol.

If an instruction sheet for the phone's basic configuration accompanies the Cisco IP Phone 7905G, the end user needs to complete the steps in the "Basic Configuration of the Cisco IP Phone 7905G" section before using the phone.


Note Do not cover or block the air vents on the back side of the Cisco IP Phone 7905G. Overheating can cause permanent damage to the unit.


Basic Configuration of the Cisco IP Phone 7905G

The basic configuration of the Cisco IP Phone 7905G provides the phone with the minimal information that it needs to download its complete operational configuration profile from a TFTP server. This information includes a value to enable TFTP downloads, a value for the URL for the TFTP server that stores the phone's complete configuration file (also known as a profile), and a value for the encryption key. Refer to Chapter 3, "Configuring the Cisco IP Phone 7905G" for information on working with profiles.

You can arrange for basic configuration to occur in either of the following two ways:

Preconfiguration Before Shipping

Manual Configuration After Installation

Preconfiguration Before Shipping

As the administrator, you can preconfigure the Cisco IP Phone 7905G before it is shipped to the end user, following the steps in the "Manual Configuration After Installation" section below.

Then, after the end user connects the phone as described in the "Physical Installation of Cisco IP Phone 7905G" section, the phone automatically downloads the configuration profile and the latest phone software from the TFTP server. The phone is ready for use within seconds.

Manual Configuration After Installation

If preconfiguration is not possible, the end user can manually enter the IP address of the TFTP server and the encryption key. You can provide this information by e-mail or on a sheet of paper that ships with the phone.

After the end user has connected the phone as described in the "Physical Installation of Cisco IP Phone 7905G" section, the basic configuration can be entered through the phone, following this procedure:


Step 1 Press the Services key to access the services menu.

Step 2 In the services menu, use the navigation button to select Settings, and then press the Select softkey.

Step 3 In the settings menu, use the navigation key to select Network Configuration, and then press the Select softkey.

Step 4 In the network configuration menu, use the navigation button to select TFTP Enabled, and then press the Edit softkey.

Step 5 Use the arrow (<--) softkey to move the cursor over the character that you want to change. Press the keypad digit 1 to enable TFTP, and then press the Accept softkey.

Step 6 In the network configuration menu, use the navigation button to select TFTP Server, and then press the Edit softkey.

Step 7 The current value for the URL of the TFTP server is shown in two fields: "Old Value" and "New Value." The four softkeys help you enter a new URL in the "New Value" field. Use the arrow (<--) softkey to move the cursor to the character that you want to change.


Note When the cursor moves over a character, the character is deleted and a new character must be entered. You cannot cancel individual character deletions, but you can use the Cancel softkey to back out of the screen without saving your changes.


Use the NUM/ALPHA softkey to toggle between Numeric mode, in which the keypad keys produce numbers, and Alphabetic mode, in which the keypad keys produce letters. Enter the URL, and then press the Accept softkey.

Step 8 In the network configuration menu, use the navigation button to select Change TFTP Encryption Key, and then press the Edit softkey.

Step 9 Enter the encryption key, and then press the Accept softkey.

Step 10 Press the Back softkey to return to the next-higher-level menu until you see the Exit softkey. Press the Exit softkey to leave the services menu. The phone proceeds to silently download its configuration profile and the latest phone software from the TFTP server.


Verifying Installation

If you see the ready screen and hear a dial tone when you lift the handset, you have installed the Cisco IP Phone 7905G properly. Make a call to be sure, and follow the troubleshooting tips below if necessary.

Symptom    You do not see the ready screen after lifting the telephone handset.

Possible Cause    The power cord may not be connected properly.

Recommended Action    Ensure that the cord is connected properly.

Symptom    You do not hear a dial tone after lifting the telephone handset.

Possible Cause    You may have used the wrong type of Ethernet cable (crossover or straight-through) or you may not have secured all cable connections.

Recommended Action    Ensure that the appropriate Ethernet cable is used and that all cable connections are secure.

Symptom    You place a call and receive a fast-busy tone.

Possible Cause    Network connectivity between you and your party may be temporarily down.

Recommended Action    Try your call again later.