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Showing posts with the label Cisco Call Manager

LYNC to CISCO CALL MANAGER integration

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Hi all, Just some similar for Lync, what we have to do for the Cisco Integration (SIP Trunk) How to configure a SIP trunk between Cisco Call Manager 5.x or 6.x and OCS 2007 R1 or R2 ( it is the SAME for LYNC ) Lync is an IP PBX with its extensions 3xxx and you need to connect it with Cisco PBX with extensions 7xxx . for the SIP trunk to work fine we need to have some specific configuration on that trunk , if any of these settings are not configured right then you will not be able to make a stable calling between Cisco and LYNC. For my customer i could define: LYNC customer uses the internal Extension 3XXX, CISCO accepts E.164 number, e.g. +6031234567898 (+, country code (2), Area code (1-2), number (7)) 711µlaw is used N on-secure SIP trunk (no TLS encryption) http://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cucm/admin/7_1_2/ccmcfg/bccm-712-cm/b06trunk.html You find the config: Device Configuration SIP TRUNK CISCO: ...