Table of Contents

Voice-over-IP Card

Voice-over-IP Card

This chapter describes the Voice-over-IP (VoIP) card, a coprocessing card and software package that adds VoIP capabilities to Cisco AS5300 universal access servers. This chapter includes the following sections:

• Overview
  
  
• Benefits
  
  
• Hardware Features
  
  
• Prerequisites
  
  
• Cisco IOS Software Requirements
  
  
• Removing and Installing Cards
  
  
• Upgrading VoIP Card VCWare
  
  
• Configuring VoIP
  
  

Overview

The VoIP capability enables a Cisco router to carry live voice traffic (for example, telephone calls and faxes) over an IP network. The VoIP card is available as a spare or a factory-installed card within the chassis.

The VoIP card contains multiple digital signal processor (DSP) modules. It uses the Cisco AS5300's Quad or Octal T1/E1 Public Switched Telephone Network (PSTN) interface and local-area network (LAN) or wide-area network (WAN) routing capabilities to provide VoIP packetized voice traffic to or from T1/E1 time-division multiplexing (TDM) traffic. Model AS53-6VOX supports 48/60 channels, and model AS53-VOXD supports 96/120 channels. Major applications of the VoIP cards include toll bypass, remote PBX presence over WANs, unified voice/data trunking, and plain old telephone service (POTS) Internet phone gateway. If you purchased a chassis with this card already installed, go directly to "Prerequisites ."

Benefits

VoIP offers the following benefits:

• Toll bypass
  
  
• Remote PBX presence over WANs
  
  
• Unified voice/data trunking
  
  
• POTS-Internet telephony gateways
  
  

The VoIP card has two primary applications. The first application (see Figure 5-1) provides a central-site telephony termination facility for VoIP traffic from multiple voice-equipped Cisco AS5300 remote office facilities.

The second application (see Figure 5-2) uses the VoIP card as a PSTN gateway for Internet telephone traffic. This leverages the standardized use of H.323-based Internet telephone client applications.

Hardware Features

The basic hardware features of the VoIP card and the DSP modules are described in the following sections.

VoIP Card

The VoIP card resides in one of the slots in the Cisco AS5300 universal access server. Up to five DSP modules can be installed onto the Voice card to perform voice processing for up to 30 B channels.

• CPU: MIPS 4700 100 MHz
  
  
• Support chipset: AS53-6VOX (DSPM 542) uses GT-64010 system controller; AS53-VOXD (DSPM 549) uses GT-64010 system controller
  
  
• DRAM: Standard 72 pin SIMM (4, 8, 16 MB)
  
  
• Flash: Cisco proprietary Flash 80 pin SIMM
  
  
• Five DSP module sockets
  
  

DSP Modules

The DSP module provides voice compression and packetization services to the Voice card so that you can both configure and exapand it.

• 6 DSPs per DSP module, use 4 DSP modules for T1 applications and 5 DSP modules for E1 applications
  
  
• Uses TI TMS320C542 50 MHz or TI TMS320C549 100 MHz
  
  
• DSP SRAM: 128 Kwords (16 bit)
  
  

Caution Do not mix DSP modules on the same voice card. You cannot install a DSP 549 double-density module and a DSP 542 module on the same voice card, nor can you mix a voice card carrying only DSP 549 modules and a voice card carrying only DSP 542 modules in the same chassis.

Prerequisites

Before you can configure your Cisco AS5300 to use VoIP, you must first:

• Establish a working IP network. For more information about configuring IP, refer to the "IP Overview," "Configuring IP Addressing," and "Configuring IP Services" chapters in the Network Protocols Configuration Guide, Part 1.
  
  
• Complete basic configuration for the Cisco AS5300. This includes, as a minimum, the following tasks:
  
  
  • Configure a host name and password for the Cisco AS5300.
    
    
  • Configure Ethernet 10BaseT/100BaseT interface of your Cisco AS5300 so that it is recognized as a device on the Ethernet LAN.
    
    
  • Configure Cisco AS5300 interfaces for ISDN PRI lines.
    
    
  • Configure ISDN D channels for each ISDN PRI line.
    
    

  For more information about these configuration tasks, refer to the Cisco AS5300 Universal Access Server Software Configuration Guide.

• Install the VoIP card (VFC) into the appropriate slot of your Cisco AS5300 access server. Each VFC can hold up to five digital signal processor modules, enabling processing for up to 30 B channels.
  
  
• Complete your company's dial plan.
  
  
• Establish a working telephony network based on your company's dial plan.
  
  
• Integrate your dial plan and telephony network into your existing IP network topology. Merging your IP and telephony networks depends on your particular IP and telephony network topology. In general, we recommend the following:
  
  
  • Use canonical numbers wherever possible. It is important to avoid situations where numbering systems are significantly different on different routers or access servers in your network.
    
    
  • Make routing and/or dialing transparent to the user—for example, avoid secondary dial tones from secondary switches, where possible.
    
    
  • Contact your PBX vendor for instructions on how to reconfigure the appropriate PBX interfaces.
    
    

Cisco IOS Software Requirements

The VoIP card and the DSP modules require Cisco IOS Release 11.3(2)N or higher (plus images only).

Removing and Installing Cards

Caution If you skipped in "Safety Warnings, Recommendations, and Tools Required," (in the beginning of this guide), go back to that chapter and read it now. This chapter provides important safety information and a list of tools you need to successfully remove and install cards without damaging your access server.

Removing VoIP Cards

To remove the VoIP card, perform the following steps:

Warning Do not work on the system or connect or disconnect cables during periods of lightning activity.

Caution The cards are not hot-swappable (that is, you cannot remove or install them when the power to the access server is ON). Be sure to turn OFF the power to the access server before installing or removing cards. Failure to do so can damage the access server.

Step 2   Power OFF the access server. Turn the power switch on the access server OFF and disconnect site power. If using a DC-powered unit, refer to Figure 5-3 and complete steps a to d.

Warning Before performing any of the following procedures, ensure that power is removed from the DC circuit. To ensure that all power is OFF, locate the circuit breaker on the panel board that services the DC circuit, switch the circuit breaker to the OFF position, and tape the switch handle of the circuit breaker in the OFF position.

Figure 5-3: DC Power Supply Connections

Step 3   On the rear panel of the access server, locate the VoIP card seen in Figure 5-4.

Step 4   Loosen the two captive screws that secure the VoIP card to the chassis until each screw is free of the chassis (see Figure 5-4).

Step 5   Insert the card removal tool so that the slots in each arm of the tool are behind the shoulder of each captive screw, as shown in Figure 5-5, and carefully pull the removal tool toward you until the VoIP card slides free of the chassis.

Caution The EMI protective devices on the VoIP card are designed to make the card fit tightly. When removing the card, they can release suddenly. Exercise caution when removing the VoIP card with the card removal tool.

Step 6   Set the removed VoIP card aside on an ESD-preventive mat.

Step 7   Continue with one of the following sections:

• "Removing DSP Modules" to remove DSP modules from the VoIP card.
  
  
• "Installing VoIP Cards" to install a new VoIP card.
  
  

Removing DSP Modules

To remove DSP modules:

Step 2   On the VoIP card, locate the DSP module you will replace (see Figure 5-6).

Step 3   Orient the VoIP card so that the DSP module socket is facing toward you.

Step 4   Gently pry the front edge of the DSP module away from the standoffs and the socket, as indicated by the arrow labeled 1 in Figure 5-6.

Step 5   When the DSP module is free of the socket, gently pry the back edge of the DSP module away from the other set of standoffs, as indicated by the arrow labeled 2 in Figure 5-6.

Step 6   Continue with the following section, "Removing DSP Modules."

Installing DSP Modules

To install a DSP module, first seat the DSP module in the socket, then press all four corners onto their respective standoffs, as shown in Figure 5-7.

Caution Do not mix DSP modules on the same voice card. You cannot install a DSP 549 double-density module and a DSP 542 module on the same voice card, nor can you mix a voice card carrying only DSP 549 modules and a voice card carrying only DSP 542 modules in the same chassis.

Step 7   Continue with the following section, "Installing VoIP Cards" to install the VoIP card.

Installing VoIP Cards

To install a VoIP card:

Step 2   Slide the VoIP card into the slot until it touches the backplane connector.

Step 3   Align the captive screws with their holes, and then seat the VoIP card completely.

Step 4   Tighten the two captive screws (see Figure 5-8) to secure the VoIP card to the chassis.

Step 5   If the access server is configured with fewer than three cards, make sure that a blank slot cover is installed over each open slot to ensure proper airflow inside the chassis.

Step 6   Reconnect the AC power cord. Or, if using DC power, refer to Figure 5-9, and then complete steps a to d.

Warning The illustration shows the DC power supply terminal block. Wire the DC power supply using the appropriate wire terminations at the wiring end, as illustrated. The proper wiring sequence is ground to ground, positive to positive, and negative to negative. Note that the ground wire should always be connected first and disconnected last.

Caution Do not overtorque the terminal block contact screws. The recommended torque is 8.2 ± 0.4 inch-lb.

Warning After wiring the DC power supply, remove the tape from the circuit breaker switch handle and reinstate power by moving the handle of the circuit breaker to the ON position.

Step 7   Power ON the access server.

The internal power supply fan should power on.

Step 8   Continue with the following section, "Upgrading VoIP Card VCWare ."

Upgrading VoIP Card VCWare

To download VCWare to your Voice card, you need to:

Identify Voice Cards

Use the following steps to identify the Voice cards in the system and determine whether the VFC is in VCWare mode or ROM Monitor mode. This determines how you download software to the VFC.

5300> enable

Password: <password>

5300# 

5300# show vfc <0-2> board

--

Replace Firmware with VCWare in VCWare Mode

Configure

Use the steps that follow to download new voice software if your voice card is running in VCWare mode. When downloading from a diskette, first copy the software from the diskette to a TFTP server. After the software is on the TFTP server, begin the following steps.

5300# erase vfc slot_number

This will erase the contents of VFC Flash. Continue ?[y/n]:yes

This will take some time. Please, wait...vfc

5300# show vfc slot_number directory

5300# copy tftp: vfc:

or

5300# copy tftp vfc

Voice card slot number <slot ? 1>

Address or name of remote host [UNKNOWN]? 223.255.212.244

Source file name? /path/vcw-vfc-mz.1.0.bin

Destination file name [vcw-vfc-mz.1.0.bin]? vcw-vfc-mz.1.0.bin

! note, the destination filename is *IMPORTANT*

Accessing file 'vcw-vfc-mz.1.0.bin' on 223.255.212.244...

Loading vcw-vfc-mz.1.0.bin from 223.255.212.244 (via Ethernet0):

!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!![OK - 291292/291328 bytes]

5300> clear vfc slot_number

Do you really want to reset this card ?

[y/n] y

Please, wait...

5300> enable

Password: <password>

5300# 

5300# show vfc slot_number board

5300#

5300# show vfc slot_number directory

5300#

5300# unbundle vfc slot_number

Do you want to continue ? [y/n]: y

5300# show vfc slot_number directory

5300#

5300# show vfc slot_number default-file

5300#

5300# show vfc slot_number cap-list

5300#

5300# reload

	Caution Erasing the VFC files can result in system outage or the corruption of your VFC board. Check to ensure that the correct version of software resides on your TFTP server before continuing. Table 5-2: Replace Firmware in VCWare Mode
Step	Command	Purpose
1 (optional)		Note See the Caution before this table before continuing. Erase the contents of the VFC Flash memory in the selected voice card. If this command fails, use the screen "Replace Firmware with VCWare in ROM Monitor Mode."
2 (optional)		Verify the VFC Flash memory is empty.
3		Use the first copy command with Cisco IOS Release Version 12.x and use the second copy command (no colons) with Cisco IOS Release Version 11.x. Use TFTP to download the new VCWare to VFC Flash memory. In this example, slot 1 is chosen by default. Note The destination image name must begin with "vcw-" (all lowercase) and no other character can be in front of vcw-, so no directory path should be included at the beginning of the image name. Be absolutely certain to get the name right. If one character or space is wrong, the file will not be recognized and will not be copied over.
4		Reboot the VFC so you can add the new VCWare image into the voice card. Press y to verify the reset function.
5		Reenter enable mode. Enter the password. You have entered enable mode when the prompt changes to 5300#.
6		Check to see that the VFC is back up in VCWare mode. If the VFC is not in VCWare mode, repeat Step 4 again. If this continues to fail, use the procedure in the section "Replace Firmware with VCWare in ROM Monitor Mode."
7		Verify that VCWare is in the VFC Flash memory.
8		Unbundle the DSPWare from the VCWare and configure the default file and capability lists with default values. Continue by pressing y when the prompt appears.
9		Verify that the DSPWare is unbundled.
10		Verify that the default file list is initialized.
11		Verify that the capability list is populated.
12		Reboot the Cisco AS5300 so these changes take effect.

Verify

To check that you have successfully downloaded the software:

• Enter the show vfc slot_number directory command to verify that the VCWare is in the Flash memory. Only one filename should appear. If this command times out, start over with "Identify Voice Cards."
  
  

5300# show vfc 1 dir

 
Files in slot 1 VFC flash:
	File Name 	Size (Bytes)
1.	vcw-vfc-mz.1.0.bin 	291292
 

• Enter the show vfc slot_number default-file and show vfc slot_number cap-list commands to verify that the DSPWare is unbundled and the default file list and cap-list are initialized.
  
  

5300# show vfc 1 def (full word is default-file) 
 
Default File List for VFC in slot 1: 
 
1. btl-vfc-l.1.0.bin
2. cor-vfc-l.1.0.bin
3. bas-vfc-l.1.0.bin
4. cdc-g729-l.1.0.bin
5. fax-vfc-l.1.0.bin
6. jbc-vfc-l.1.0.bin
 
5300# show vfc 1 cap-list

 
Capability List for VFC in slot 1: 
 
1. fax-vfc-l.0.13.0.bin
2. bas-vfc-l.0.13.0.bin
3. cdc-g729-l.0.13.0.bin
4. cdc-g711-l.0.13.0.bin
 
5300#

Tips

If you are having trouble downloading the voice card software in VCWare mode, try the following:

• Enter the show vfc slot_number board command to verify that the voice card is back up in VCWare mode.
  
  

5300# show vfc 1 board

VFC board state is UP, vfc status VCWARE running(0x4)
VFC board in slot 1 with 18 dsps
5300#
 

• Determine if the VFC ROM version you are running is 1.1 or version 1.2.
  
  

5300# sh vfc 1 ver vcw

 
Voice Feature Card in Slot 1:
     VCware Version     :  1.0
     ROM Monitor Version:  1.2
     DSPware Version    :  1.0
 

• Type the reload command to reboot the Cisco AS5300 so these changes take effect.
  
  

Replace Firmware with VCWare in ROM Monitor Mode

Configure

Use the steps that follow to download new voice software if your voice card is running in ROM Monitor mode. When downloading from a diskette, first copy the software from the diskette to a TFTP server. After the software is on the TFTP server, begin the following steps.

Caution Erasing the VFC files can result in system outage or the corruption of your VFC board. Check to ensure that the correct version of software resides on your TFTP server before continuing.

5300# clear vfc slot_number purge

debug vfc <slot#> start

debug vfc <slot#> cons flash erase

This will erase the contents of VFC Flash. Continue ?[y/n]: y

This will take some time. Please, wait...vfc

5300# copy tftp vfc

Voice card slot number <slot ? 1>

Address or name of remote host [UNKNOWN]? 223.255.212.244

Source file name? vcw-vfc-mz.1.0.bin

Destination file name [vcw-vfc-mz.1.0.bin]? vcw-vfc-mz.1.0.bin

! note, the destination filename is *IMPORTANT*

Accessing file 'vcw-vfc-mz.1.0.bin' on 223.255.212.244...

Loading vcw-vfc-mz.1.0.bin from 223.255.212.244 (via Ethernet0):

!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!![OK - 291292/291328 bytes]

5300> clear vfc slot_number

Do you really want to reset this card ?

[y/n] y

Please, wait...

5300> enable

Password: <password>

5300# 

5300# show vfc slot_number board

5300#

5300# show vfc slot_number directory

5300#

5300# unbundle vfc slot_number

Do you want to continue ? [y/n]: y

5300# show vfc slot_number directory

5300#

5300# show vfc slot_number default-file

5300#

5300# show vfc slot_number cap-list

5300#

5300# reload

Verify

To check that you have successfully downloaded the software:

• Enter the show vfc slot_number directory command to verify that the VCWare is in the Flash memory. Only one filename should appear. If this command times out, restart with "Identify Voice Cards."
  
  

5300# show vfc 1 dir

 
Files in slot 1 VFC flash:
	File Name 	Size (Bytes)
1.	vcw-vfc-mz.1.0.bin 	291292
 

• Enter the show vfc slot_number default-file and show vfc slot_number cap-list commands to verify that the DSPWare is unbundled and the default file list and cap-list are initialized.
  
  

5300# show vfc 1 def (full word is default-file) 
 
Default File List for VFC in slot 1: 
 
1. btl-vfc-l.1.0.bin
2. cor-vfc-l.1.0.bin
3. bas-vfc-l.1.0.bin
4. cdc-g729-l.1.0.bin
5. fax-vfc-l.1.0.bin
6. jbc-vfc-l.1.0.bin
 
5300# show vfc 1 cap-list

 
Capability List for VFC in slot 1: 
 
1. fax-vfc-l.0.13.0.bin
2. bas-vfc-l.0.13.0.bin
3. cdc-g729-l.0.13.0.bin
4. cdc-g711-l.0.13.0.bin
 
5300#

Tips

If you are having trouble downloading the voice card software in ROM Monitor mode, try the following:

• Enter the show vfc slot_number board command to verify that the voice card is back up in VCWare mode.
  
  

5300# show vfc 1 board

VFC board state is UP, vfc status VCWARE running(0x4)
VFC board in slot 1 with 18 dsps
5300#
 

• Determine if the VFC ROM version you are running is 1.1 or 1.2.
  
  

5300# sh vfc 1 ver vcw

 
Voice Feature Card in Slot 1:
     VCware Version     :  1.0
     ROM Monitor Version:  1.2
     DSPware Version    :  1.0

Configuring VoIP

The actual configuration procedure depends entirely upon the topology of your voice network, but, in general, you need to complete the following configuration tasks:

For detailed procedures, see the Cisco AS5300 Universal Access Server Software Configuration Guide. You can find the most up-to-date version of this manual online from either CCO or the CD-ROM.

• For access to the CCO version of this manual, go to:
  
  

  Products & Ordering: Documentation: Cisco Documentation: Cisco Product Documentation: Access Servers and Access Routers: Access Servers: Cisco AS5300: Cisco AS5300 Universal Access Server Software Configuration Guide.

• For access to the CD-ROM version of this manual, go to:
  
  

  Cisco Product Documentation: Access Servers and Access Routers: Access Servers: Cisco AS5300: Cisco AS5300 Universal Access Server Software Configuration Guide.

For detailed examples of command output, see the Voice Over IP for the Cisco AS5300 Configuration Guide. You can find the most up-to-date version of this manual online from either CCO or the CD-ROM.

• For access to the CCO version of this manual, go to:
  
  

  Products & Ordering: Documentation: Cisco Documentation: Cisco Product Documentation: Access Servers and Access Routers: Cisco Voice Over IP Documentation: Voice Over IP for the Cisco AS5300: Voice Over IP for the Cisco AS5300 Configuration Examples.

• For access to the CD-ROM version of this manual, go to:
  
  

  Cisco Product Documentation: Access Servers and Access Routers: Access Servers: Cisco Voice Over IP Documentation: Voice Over IP for the Cisco AS5300: Voice Over IP for the Cisco AS5300 Configuration Examples.