The documentation set for this product strives to use bias-free language. For the purposes of this documentation set, bias-free is defined as language that does not imply discrimination based on age, disability, gender, racial identity, ethnic identity, sexual orientation, socioeconomic status, and intersectionality. Exceptions may be present in the documentation due to language that is hardcoded in the user interfaces of the product software, language used based on RFP documentation, or language that is used by a referenced third-party product. Learn more about how Cisco is using Inclusive Language.
The Cisco VG420 Voice Gateway supports the following SKUs:
VG420-144FXS: This has144 analog FXS ports and no FXO port
VG420-132FXS/6FXO: This has 132 analog FXS ports and 6 FXO ports
VG420-84FXS/6FXO: This has 84 analog FXS ports and 6 FXO ports
FXS Ports: This voice port supports loop start, ground start, and DID signaling types.
FXO Ports: This voice port supports loop start and ground start signaling types.
See the following table for information on the voice ports that are supported on these SKUs
SKUs |
VG420-144FXS |
VG420-132FXS/6FXO |
VG420-84FXS/6FXO |
---|---|---|---|
FXS Ports |
144 |
132 |
84 |
FXO Ports |
0 |
6 |
6 |
Number of Failed Over Ports |
N/A |
6 |
6 |
DID and long loop ports |
108, 1/0/0 to 1/0/107 |
108, 1/0/0/ to 1/0/107 |
84, 1/0/0 to 1/0/83 |
Maximum REN |
80 |
80 |
80 |
RJ21 Connectors |
6 |
6 |
4 |
To view the fail over port mapping for Cisco VG420 Voice Gateway, see the following sample output of the show voice port summary:
VG420-132FXS/6FXO: provide 6 power fail-over ports:
PWR FAILOVER PORT PSTN FAILOVER PORT
================== ==================
1/0/126 FXO BYPASS 1/0/132
1/0/127 FXO BYPASS 1/0/133
1/0/128 FXO BYPASS 1/0/134
1/0/129 FXO BYPASS 1/0/135
1/0/130 FXO BYPASS 1/0/136
1/0/131 FXO BYPASS 1/0/137
VG420-84FXS/6FXO: provide 6 power fail-over ports:
PWR FAILOVER PORT PSTN FAILOVER PORT
================== ==================
1/0/78 FXO BYPASS 1/0/84
1/0/79 FXO BYPASS 1/0/85
1/0/80 FXO BYPASS 0/1/86
1/0/81 FXO BYPASS 1/0/87
1/0/82 FXO BYPASS 0/1/88
1/0/83 FXO BYPASS 1/0/89
Cisco VG420 Voice Gateway supports ds0-group and E&M voice ports on existing voice NIMs (NIM slot 0). To know how to configure these digital ds0-group port, E&M, FXS and FXO voice ports, see the Voice Port Configuration Guide.
To view detailed information about voice port configuration, see the Cisco IOS Voice Configuration Library.
Note |
It is recommended that you configure the interdigit timeout value for the voice ports. To configure this value for a specified voice port, use the timeouts interdigit <seconds> command in the voice-port configuration mode. If you do not configure this value, by default, the value is 10 seconds. To learn more about this command, see the Cisco IOS Voice Command Reference Guide. |