3CX is cheaper than yearly CISCO Call Manager maintenance
Expand your system with any IP Phones
How it works
- Deploy 3CX Phone System for Windows. You can download 3CX here.
- You will need to “SIP” your CISCO 7940 phones. CISCO Call Manager uses the proprietary SCCP protocol rather than the standard SIP protocol. Using a straight forward process you can upgrade your CISCO 7940 phones to SIP. A detailed guide can be found here.
- Provision your phones for 3CX as described in this detailed configuration guide: http://www.3cx.com/sip-phones/cisco-7940g-7960g/