Audio Codecs; Aaa - MikroTik RouterOS v2.9 Reference Manual

ring-tone-frequency ( integer : 20 ..2000 | integer : -24 ..6 ; default: 440x0 ) - frequency and
volume gain of busy tone, Hz x dB
Notes
To generate a tone, frequency and cadence arguments are used. The dialtone always is continuous
signal, therefore it does not have the cadence argument. In order to detect dialtone, it should be at
least 100ms long.
There are 10 pre-defined regions, which can not be deleted (but may be changed)

Audio CODECs

Home menu level: /ip telephony codec
Description
CODECs are listed according to their priority of use. The highest priority is at the top. CODECs can
be enabled, disabled and moved within the list. When connecting with other H.323 systems, the
protocol will negotiate the CODEC which both of them support according to the priority order.
The hardware codecs (/hw) are built-in CODECs supported by some cards.
The choice of the CODEC type is based on the throughput and speed of the network. Better audio
quality can be achieved by using CODEC requiring higher network throughput. The highest audio
quality can be achieved by using the G.711-uLaw CODEC requiring 64kb/s throughput for each
direction of the call. It is used mostly within a LAN. The G.723.1 CODEC is the most popular one
to be used for audio connections over the Internet. It requires only 6.3kb/s throughput for each
direction of the call.
Example
[admin@MikroTik] ip telephony codec> print
Flags: X - disabled
# NAME
0 G.723.1-6.3k/sw
1 G.728-16k/hw
2 G.711-ALaw-64k/hw
3 G.711-uLaw-64k/hw
4 G.711-uLaw-64k/sw
5 G.711-ALaw-64k/sw
6 G.729A-8k/sw
7 GSM-06.10-13.2k/sw
8 LPC-10-2.5k/sw
9 G.723.1-6.3k/hw
10 G.729-8k/sw
[admin@MikroTik] ip telephony codec>

AAA

Home menu level: /ip telephony aaa
Description
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