Specifications

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Catalyst 4224 Access Gateway Switch Software Configuration Guide
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Chapter 6 Configuring VoIP
Configure Voice Ports
Note After you change any voice port setting, Cisco recommends that you cycle the
port by using the shutdown and no shutdown commands.
Configure E&M Voice Ports
Unlike FXS and FXO voice ports, the default E&M voice-port parameters are not
sufficient to enable voice and data transmission over your IP network. Because of
the inherent complexities of PBX networks, E&M voice port values must match
those specified by the particular PBX device to which it is connected.
To configure E&M voice ports, use the commands outlined in Table 6-5,
beginning in privileged EXEC mode:
Step 12
(FXO ports only) If the
voice-port dial type is pulse,
configure the pulse digit signal
duration.
timing pulse-digit
milliseconds
10 to 20 ms 20 ms
Step 13
(FXO ports only) If the
voice-port dial type is pulse,
configure the pulse inter-digit
signal duration.
timing pulse-inter-digit
milliseconds
100 to 1000 ms 500 ms
Table 6-4 Commands to Fine Tune FXS and FXO Voice Ports (continued)
Task Command Valid Entries
Default
Value
Table 6-5 Commands to Configure E&M Voice Ports
Task
Required
or Optional Command
Step 1
Enter the global configuration mode. Required
configure terminal
Step 2
Identify the voice port you want to configure,
and enter the voice port configuration mode.
Required
voice-port slot-number/port
Step 3
Select the appropriate dial type for
out-dialing.
Required
dial-type {dtmf | pulse}