Chapter 4 Configuring Voice

Auto-Configuration on the Cisco VG202, Cisco VG202XM, Cisco VG204, and Cisco VG204XM Voice Gateways

 

Command or Action

Purpose

Step 6

 

 

ccm-manager sccp local interface-type

Selects the local interface that the SCCP application uses

 

interface-number

to register with CUCM.

 

Example:

 

 

VG(config)# ccm-manager sccp local fastethernet

 

 

0/0

 

Step 7

 

 

ccm-manager sccp

Enables CUCM autoconfiguration of the Cisco IOS

 

 

gateway.

 

Example:

Note The ccm sccp command will remove itself if

 

VG(config)# ccm-manager sccp

there is no IP address configured. The command

 

 

checks every 20 seconds, up to a maximum of 8

 

 

times, then the Cisco IOS gateway will be

 

 

automatically unconfigured.

Step 8

 

 

voice service voip

Enters voice-service configuration mode and specifies a

 

 

voice-encapsulation type.

 

Example:

Note This step is not necessary through

 

VG(config)# voice service voip

auto-configuration.

Step 9

 

 

fax protocol t38 [nse[force]]

Specifies the global default ITU-T T.38 standard fax

 

 

protocol to be used for all VoIP dial peers.

 

Example:

Note This step is not necessary through

 

VG(config)# fax protocol t38 nse force

auto-configuration.

Step 10

 

 

exit

Exits to global configuration mode.

 

Example:

 

 

VG(config-line)# exit

 

 

 

 

Auto-Configuration Without a DHCP Server

When the DHCP server is not available, use the following commands to provision the voice gateway with the CUCM configuration.

SUMMARY STEPS

1.enable

2.configure terminal

3.interface type slot/port

4.ip address static ip subnet mask

5.sccp local interface-type interface-number port port-number

6.voice service voip

7.fax protocol t38 [nse[force]]

8.ccm-manager sccp local interface-type interface-number

9.ccm-manager config server tftp_ip_address

10.ccm-manager sccp

Cisco VG202, Cisco VG202XM, Cisco VG204, and Cisco VG204XM Voice Gateways Software Configuration Guide

 

OL-16191-01

4-5

 

 

 

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Cisco Systems VG204XM, VG202XM manual Auto-Configuration Without a Dhcp Server, Voice service voip Fax protocol t38 nseforce

VG202, VG204XM, VG204, VG202XM specifications

Cisco Systems has long been a leader in the realm of networking technology, providing innovative solutions for businesses of all sizes. Among its products, the Cisco VG202XM, VG204, VG204XM, and VG202 series stand out as vital components in voice gateway solutions for IP telephony applications.

The Cisco VG202XM and VG204 series are designed to facilitate the convergence of voice and data as businesses transition to VoIP (Voice over Internet Protocol). These voice gateways offer seamless integration with legacy telephony systems while enabling the deployment of advanced IP-based telephony features. They are particularly useful for organizations looking to preserve their existing investments in traditional telephony infrastructure while embracing modern communication technologies.

One of the main features of the VG202XM and VG204 series is their support for two-line interfaces, catering to varying deployment needs. The VG202 provides two FXS (Foreign Exchange Station) ports, which allow businesses to connect analog phones and fax machines directly. The VG204 enhances this capability by offering four FXS ports, accommodating larger user bases and providing more connections for local telephony equipment.

These gateways support an array of voice codecs and can handle up to 16 concurrent calls, ensuring high-quality voice communication in busy environments. Their integration with Cisco's Unified Communications Manager allows users to access a host of advanced telephony features such as call forwarding, voicemail, and conferencing.

On the technology front, the VG202XM and VG204 series support both SIP (Session Initiation Protocol) and H.323 protocols, making them versatile for varied network environments. They also offer advanced QoS (Quality of Service) capabilities, ensuring that voice traffic is prioritized over other types of data, which is essential in maintaining call clarity and reliability.

Additionally, the VG204XM variant adds built-in safety features, such as power over Ethernet (PoE), which eliminates the need for separate power supplies for connected devices. This not only streamlines deployment but also enhances the reliability of the voice system.

In terms of management, these devices are equipped with Cisco's user-friendly interface, which simplifies configuration and monitoring. They can be managed through various tools offered by Cisco, making it easier for IT departments to maintain and optimize their voice services.

Overall, the Cisco VG202XM, VG204, VG204XM, and VG202 series deliver robust, scalable, and reliable solutions for businesses aiming to leverage the benefits of voice gateways in their enterprise networks. These devices not only provide essential voice capabilities but also pave the way for future growth and integration in an increasingly digital world.