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Configuration of trunk between Cisco UCM and 3CX
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| # Configuration for setting up a bidirectional trunk between Cisco CM and 3CX | |
| # Agenda | |
| # 10001 — Bridge number / id in 3CX | |
| # 1xxx — Dial plan in Cisco UCM | |
| # 2xxx — Dial plan 3CX system | |
| # 10.0.1.2 — Voice router / gateway | |
| # 10.0.2.2 — Cisco UCM | |
| # 10.0.3.2 — 3CX | |
| # Tested on Cisco ISR 2921, SW: "c2900-universalk9-mz.SPA.157-3.M8.bin" | |
| ! | |
| class-map match-any voip-med | |
| match protocol rtp | |
| class-map match-any voip-sig | |
| match protocol sip | |
| ! | |
| policy-map policy-voip | |
| class voip-med | |
| set dscp ef | |
| class voip-sig | |
| set dscp af41 | |
| ! | |
| ! | |
| interface FastEthernet0/0 | |
| description VoIP Network | |
| ip address 10.0.1.2 255.255.255.0 | |
| service-policy output policy-voip | |
| ! | |
| ! | |
| voice service voip | |
| ip address trusted list | |
| ipv4 10.0.2.2 255.255.255.255 | |
| ipv4 10.0.3.2 255.255.255.255 | |
| srtp fallback | |
| allow-connections sip to sip | |
| supplementary-service h450.12 | |
| no supplementary-service sip moved-temporarily | |
| supplementary-service media-renegotiate | |
| redirect ip2ip | |
| signaling forward none | |
| sip | |
| min-se 600 session-expires 600 | |
| header-passing | |
| error-passthru | |
| registrar server | |
| asserted-id pai | |
| history-info | |
| midcall-signaling passthru | |
| privacy-policy passthru | |
| privacy-policy send-always | |
| ! | |
| voice class codec 1 | |
| codec preference 1 g722-64 | |
| codec preference 2 g711alaw | |
| codec preference 3 g711ulaw | |
| codec preference 4 g729r8 | |
| ! | |
| ! | |
| voice class sip-profiles 1 | |
| request INVITE sip-header From modify "sip:....@10.0.1.2" "sip:10001@10.0.1.2" | |
| request INVITE sip-header Contact modify "sip:....@10.0.1.2" "sip:10001@10.0.1.2" | |
| ! | |
| ! | |
| dial-peer voice 1000 voip | |
| description = CUCM = | |
| destination-pattern ^1... | |
| rtp payload-type comfort-noise 13 | |
| session protocol sipv2 | |
| session target ipv4:10.0.2.2 | |
| incoming called-number .T | |
| voice-class codec 1 | |
| no voice-class sip early-offer forced | |
| voice-class sip options-keepalive | |
| voice-class sip pass-thru content sdp | |
| dtmf-relay rtp-nte | |
| ip qos dscp cs3 signaling | |
| no vad | |
| ! | |
| ! | |
| dial-peer voice 2000 voip | |
| description = 3CX = | |
| destination-pattern ^2... | |
| rtp payload-type comfort-noise 13 | |
| session protocol sipv2 | |
| session target ipv4:10.0.3.2 | |
| incoming called-number .T | |
| voice-class codec 1 | |
| no voice-class sip asserted-id | |
| no voice-class sip early-offer forced | |
| voice-class sip profiles 1 | |
| voice-class sip options-keepalive | |
| voice-class sip pass-thru content sdp | |
| dtmf-relay rtp-nte | |
| ip qos dscp cs3 signaling | |
| no vad | |
| ! | |
| ! | |
| sip-ua | |
| credentials username 10001 password 123P realm 3CXPhoneSystem | |
| authentication username 10001 password 123P realm 3CXPhoneSystem | |
| timers connect 1000 | |
| timers register 300 | |
| registrar 1 ipv4:10.0.3.2 expires 3600 | |
| ! | |
| # More info you can found here https://blog.bezpalov.com/archives/866 |
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Configuration for setting up a bidirectional trunk between Cisco CM and 3CX