CUCM 8.6(2a) and VG204 integration

Suppose your phone network consists of IP phones and analogue phones, you want the phones to inter-call to one another, Cisco Voice Gateway is a simple solution to make this possible.

VG204 has two FE ports and 4 FXS ports, the FXS ports are for connecting analogue telephones, whereas the FE ports are connected to the ethernet which connects back to the Cisco Unified Communication Manager.

Cisco VG204.

VG204 configuration

configure terminal

!dial peer voice tag is an arbitrary number from 1-2147483647
dial-peer voice 10 pots
service stcapp
!This is the port which the analogue phone is connected.
port 0/0

!group is an arbitrary number from 1-65535
stcapp ccm-group 1

stcapp feature access-code
stcapp feature speed-dial

!FE0/0 is the port that connects to the CUCM
ccm-manager sccp local FastEthernet0/0
ccm-manager sccp

!This is the server ip of CUCM
ccm-manager config server

interface fa0/0
!Obtain ip address from CUCM dhcp server
ip address dhcp

!The following configuration turns on SCCP

sccp local FastEthernet0/0

!Create an identifier that maps to the CUCM server, 
!CUCM is version 8.6 hence version 7.0+ is chosen.
!The identifier is an arbitrary number from 1-65535.
sccp ccm identifier 11 version 7.0

!Codec used by the default device pool in CUCM
sccp codec g711alaw mask

!Create Cisco call manager group, secondary and tetiary CUCM server
!are included into the group as well. Associate to the respective CUCM
!server identifier.
sccp ccm group 1
 associate ccm 11 priority 1

Cisco unified communication manager

Device > Gateway

Click on Add New.

put in the last 10 mac address of the port fa0/0
Select Analog and choose the 4FXS-SCCP, the port icons will appear. To configure the directory number click on the port icon. For example I click on port 0/0/0.

After you click on the port icon, this page will appear which is to configure your phone number (aka directory number). Each voice port on the VG can configure a directory number to call the analogue phone.

You will see the configured VG204 ports to register to CUCM.

2 thoughts on “CUCM 8.6(2a) and VG204 integration

  1. Hi,
    I need to help to configure VG204 to modems dial-up, Do you have some example ?

    Thank You


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