Zycoo IPPBX is built on the Asterisk platform and supports the standard SIP protocol. It can connect to IMS SIP trunks from ITSPs (Internet Telephony Service Providers) as well as SIP endpoints.
This document provides instructions for automatically provisioning Cisco SIP phones using the Zycoo IPPBX.
Before proceeding, please ensure the following requirements are met:
The Cisco phone must use the SIP protocol (not SCCP) to register to the Zycoo IPPBX
The local DHCP server on your router must be disabled when using the Zycoo DHCP server for configuration
The TFTP server address should be set to the IP address of the Zycoo IPPBX.
Important Note: When configuring Cisco phone auto provision, you must disable the local DHCP server on your router and use only the Zycoo DHCP server.
| Parameter | Setting |
|---|---|
| TFTP Server | IPPBX IP Address |
| DHCP Server | Enable on Zycoo IPPBX |
Log in to the IPPBX web interface using the admin account
Navigate to Addons → AutoConfig
Select the RegServer IP that your Cisco phone needs to register to.
Create the configuration for your Cisco phone according to your requirements.
Select the configured phone
Click Reboot
The system will display Activated as the configuration status once successful.
After completing the configuration on the IPPBX, reboot your Cisco phone.
The phone will obtain an IP address and automatically configure itself under normal circumstances.
If the Cisco phone fails to obtain the configuration, please follow these steps:
Navigate to System → Diagnostic → TCP Dump
Enable packet capture on the WAN port that the IPPBX is connected to
Reboot your Cisco phone again
Wait 2–3 minutes for the phone to completely boot up
Capture the packet data and share it with Zycoo Support for analysis
| Issue | Solution |
|---|---|
| Phone cannot obtain configuration | Enable TCP Dump on WAN port |
| Configuration fails to apply | Reboot phone and capture packets |
| Phone does not register | Verify SIP protocol is used (not SCCP) |
| DHCP conflict | Disable local router DHCP server |