How to Use Cisco router configuration to implement VoIP

Using the Cisco router configuration can easily implement VoIP, So I studied the statements related to the Cisco router configuration and shared them here, hoping to be useful to everyone. VoIPVoice over IP) is a technology that transmits voice over the Internet. It has grown with the development of Internet technology. It integrates voice technology with network transmission, and gives full play to the role of the network. This article takes the Construction Bank of Zhejiang Province as an example to introduce how to use Cisco router configuration to implement VoIP.

The Computer Communication Network of China Construction Bank Zhejiang Branch is a province-wide TCP/IP-based network system. It rents lines of telecom and radio and television companies between provincial branches and municipal branches to achieve wide area network, the network bandwidth between the provincial branch and the municipal branch is 2 MB. In the construction of the Call Center project Customer Call Service Center of China Construction Bank in the province, the speech relay branch is used for access, and agents are concentrated throughout the province. In order to enable customers to enjoy the service of provincial center agents by calling the local 95533 China Construction Bank uniform Special Service Code), VoIP technology is adopted between municipal banks and provincial banks.

Solution Design

The provincial branches need to process a large number of voice and fax services, so the Cisco AS 5300 universal access server with a large capacity is used. Each local branch uses a Cisco 3640 router. The Cisco router is configured with the corresponding voice module. On the voice module, the corresponding Voice interface card can be inserted based on the signal type of The Voice port. Cisco routers support three basic voice signal types: FXO external exchange telephone board port), FXS external exchange workstation port), E & M ("receive and transmit" port, also known as "Ear and Mouth" port ). AS 5300 uses the FXO port to connect to the provincial center Lucent digital switch, and Cisco 3640 uses the FXO port to connect to the voice card of the industrial computer.

Cisco router configuration

RSVPResource Reservation Protocol is used in Cisco router configuration to control data traffic, ensure voice quality, and meet QoS requirements. The router parameters are configured as follows:

1. Take the vro parameter settings of the municipal branch as an example)

Hostname WZ
! Configure the POTS Dial-Up peer
Dial-peer voice 1 pots
Destination-pattern 05778001
Port 1/0/0
! Configure the VoIP dialing peer
Dial-peer voice 2 voip
Destination-pattern 95533.
Session target ipv4: 172.16.65.1
! Request RSVP
Req-qos guaranteed-delay
! Configure serial port
Interface serial 0/0
Ip address 172.16.1.1
! Activate RSVP
Ip rsvp bandwidth 48 48
Fair-queue 64 256 36
Clockrate 64000

2. configuration parameter settings for Cisco routers of provincial branches

Hostname HZ
! Configure the POTS Dial-Up peer
Dial-peer voice 1 pots
Destination-pattern 95533
Port 1/0/0
! Configure the VoIP dialing peer
Dial-peer voice 2 voip
Destination-pattern 05778001
Session target ipv4: 172.16.1.1
! Configure serial port
Interface serial 0/0
Ip address 172.16.65.1
! Activate RSVP
Ip rsvp bandwidth 96 96