I have a 3640 router with FXS, FX0 and E/M voice cards. Can I use a PBX with this router?
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Could you provide a sample configuration to make calls via the PBX over MPLS to different 2612 routers in other locations?
First of all -- MPLS doesn't make any difference. It just an IP transport network. You can use your 3640 with PBX. FXO helps you connect to a PSTN or a PBX. FXS allows connection to the basic telephone equipment. E&M allows connection for PBX trunk lines.
Sample configuration is given below:
Assume that port 1/0 is used on router1 and port 1/0/1 is used on router 2. Codec being used is g711. WAN IP address on router 1 is 10.2.3.4 and on router 2 is 10.5.6.7. These ip address could be IP of you PE router connecting to MPLS network. Configuration on both the routers are given below. Please check before doing it on live network.
Gateway Router 1 configuration voice-port 1/0/0 ! dial-peer voice 1 pots destination-pattern 1234 port 1/0/0 ! dial-peer voice 10 voip destination-pattern 5678 session target ipv4:10.5.6.7 codec g711ulaw Gateway Router 2 Configuration voice-port 1/0/1 ! dial-peer voice 2 pots destination-pattern 5678 port 1/0/0 ! dial-peer voice 20 voip destination-pattern 1234 session target ipv4:10.2.3.4 codec g711ulaw
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