Configuring Voice Ports
Analog Voice Ports Configuration Task List
VC-52
Cisco IOS Voice, Video, and Fax Configuration Guide
Verifying Analog Telephone Connections on Cisco 803 and 804 Routers
After configuring analog telephone connections, perform the following steps to verify proper operation:
Step 1 Pick up the handset of an attached telephony device and check for a dial tone.
Step 2 Review the configuration using the show pots status command, which displays settings of physical
characteristics and other information on telephone interfaces.
Router# show pots status
POTS Global Configuration:
Country: United States
Dialing Method: Overlap, Tone Source: Remote, CallerId Support: YES
Line Type: 600 ohm, PCM Encoding: u-law, Disc Type: OSI,
Ringing Frequency: 20Hz, Distinctive Ring Guard timer: 0 msec
Disconnect timer: 1000 msec, Disconnect Silence timer: 5 sec
TX Gain: 6dB, RX Loss: -6dB,
Filter Mask: 6F
Adaptive Cntrl Mask: 0
POTS PORT: 1
Hook Switch Finite State Machine:
State: On Hook, Event: 0
Hook Switch Register: 10, Suspend Poll: 0
CODEC Finite State Machine
State: Idle, Event: 0
Connection: None, Call Type: Two Party, Direction: Rx only
Line Type: 600 ohm, PCM Encoding: u-law, Disc Type: OSI,
Ringing Frequency: 20Hz, Distinctive Ring Guard timer: 0 msec
Disconnect timer: 1000 msec, Disconnect Silence timer: 5 sec
TX Gain: 6dB, RX Loss: -6dB,
Step 8
Router(config)# pots disconnect-time
interval
(Optional) Specifies the interval at which the
disconnect method is applied if connected
telephones, fax machines, or modems fail to detect
that a calling party has disconnected. The interval
argument is the number of milliseconds of the
interval and ranges from 50 to 2000.
The default depends on the country chosen in the
pots country command.
Step 9
Router(config)# pots silence-time
seconds
(Optional) Specifies the interval of silence after a
calling party disconnects. The seconds argument is
the number of seconds of the interval and ranges
from 0 to 10.
The default depends on the country chosen in the
pots country command.
Step 10
Router(config)# pots distinctive-ring-guard-time
milliseconds
(Optional) Specifies the delay after which a
telephone port can be rung after a previous call is
disconnected. The milliseconds argument is the
number of milliseconds of the delay and ranges from
0 to 1000.
The default depends on the country chosen in the
pots country command.
Command Purpose
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