Specifications

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Cisco 1751 Router Software Configuration Guide
OL-1070-01
Example
The following example configures the ring frequency for 50 Hz:
voice port 0/0
ring frequency 50
Related Commands
ring number
ring number
To specify the number of rings for a specified FXO voice port, use the ring number voice-port
configuration command. Use the no form of this command to reset the default value for this command.
ring number number
no ring number number
Syntax Description
Default
1 ring.
Command Mode
Voice-port configuration.
Usage Guidelines
Use the ring number command to set the maximum number of rings to be detected before answering
a call over an FXO voice port. Use the no form of this command to reset the default value.
Normally, this command should be set to the default so that incoming calls are answered quickly. If you
have other equipment available on the line to answer incoming calls, you might want to set the value
higher to give the equipment sufficient time to respond. In that case, the FXO interface would answer
if the other equipment on line did not answer the incoming call in the configured number of rings.
This command does not apply to FXS or E&M interfaces because they do not receive ringing to receive
a call.
Example
The following example sets five rings as the maximum number of rings to be detected before closing a
connection over this voice port:
voice port 0/0
ring number 5
number Number of rings detected before answering the call. Valid entries are
numbers from 1 to 10.