MikroTik RouterOS™ v2.9

We want to be able to use make calls from local telephones of one PBX to local telephones or
external lines of the other PBX.
Assume that:
• The IP telephony gateway #1 has IP address 10.0.0.182, and the name of the Voicetronix first
line is 'vctx1'.
• The IP telephony gateway #2 has IP address 10.0.0.183, and the name of the Voicetronix first
line is 'vctx1'.
The IP telephony configuration should be as follows:
• IP telephony gateway #1 should have:
/ip telephony voice-port voip add name=gw2 remote-address=10.0.0.183 /ip telephony
numbers add dst-pattern=1.. voice-port=gw2 prefix=2 add dst-pattern=2..
voice-port=vctx1 prefix=1
• IP telephony gateway #2 should have
/ip telephony voice-port voip add name=gw1 remote-address=10.0.0.182 /ip telephony
numbers add dst-pattern=2.. voice-port=vctx1 prefix=1 add dst-pattern=1..
voice-port=gw1 prefix=2
The system works as follows:
To dial from the main office PBX#1 any extension of the remote office PBX#2, the extension with
the connected gateway at PBX#1 should be dialed first. Then, after the dial tone of the gateway#1 is
received, the remote extension number should be dialed.
To dial from the main office PBX#2 any extension of the remote office PBX#1, the actions are the
same as in first situation.
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