Transition gradually to modern IP telephony with 3CX’s support for CISCO 7940 & 7960 phones Cisco 7940 IP phones stand proud on many a desk - they are good quality and look surprisingly good despite their age. Their problem - The Cisco Call
We've made great strides with 3CX Phone System 12, continually setting new standards within the PBX industry by providing key mobility and Unified Communications features. Following up from valuable feedback we've received from our customers,
brendan.helsham wrote:The one hitch in this that I have discovered is that the ISP in PNG (there's not a lot of choice by the way) is actually supplying them a 172.x.x.x "public IP" address that is being translated a second time to a real public IP address (184.108.40.206) that is reported if you open http://www.whatismyip.com
I've found, in the past, that, as a last resort, either a VPN connection or the tunnel option will usually work
Is a router then used as well with the 172.x.x.x IP? What does the 3CX log tell you (IP & post), when the set registers?
brendan.helsham wrote:3:31:17.557|.\Extension.cpp(358)|Log2||ExtnCfg::updateContact:[CM504001]: Ext.274: new contact is registered. Contact(s): [sip:email@example.com:5062/274]<br>
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