The purpose of this document is to provide guidelines for configuring Lets Encrypt certificates in IP Office Contact Center (IPOCC) and enable automatic updates to provide Signed Certificate validation for clients
Using Apache Tomcat as the Web Server
Using Internet Information Server as the Web Server
* Indicates that the port and or protocol can be changed.
| Port | Protocol | Function | |
| TCP | 25* | SMTP | Email system alarms from the IP Office to SMTP server. For IP Office 4.2 also used for Voicemail Email on Embedded Voicemail. |
| UDP | 37 | Time | Time requests from the IP Office to a Time Server (RFC868). |
| UDP | 53 | DNS | Domain Name Service responses. |
| UDP | 67 | BOOTP/DHCP | DHCP server operation. |
| UDP | 68 | BOOTP/DHCP | DHCP client operation. |
| UDP | 69 | TFTP | File requests to the IP Office. |
| UDP | 161* | SNMP | From SNMP applications. |
| UDP | 162* | SNMP Trap | To addresses set in the IP Office configuration. |
| UDP | 500 | IKE | Key exchange for IPSec protocol. |
| TCP | 389* | LDAP | Lightweight Directory Access Protocol. |
| UDP | 520 | RIP | To and from the IP Office to other RIP devices. For RIP1 and RIP2 (RIP1 compatible) the destination address is a subnet broadcast, eg. 192.168.42.255. For RIP2 Multicast the destination address is 224.0.0.9. |
| UDP | 520 | RIP | |
| UDP | 1701 | L2TP | Layer 2 tunneling protocol. |
| UDP | 1718 | H.323 | H.323 Discovery |
| UDP | 1719 | H.323 RAS | H.323 Status. VoIP device registering with the IP Office. |
| UDP | 1720 | H.323/H.245 | H.323 Signalling. Data to a registered VoIP device. |
| UDP | 2127 | UDP | PC Wallboard to CCC Wallboard Server. |
| UDP | 3478 | SIP | Port used for STUN requests from the IP Office to the SIP provider. |
| UDP/TDP* | 5060 | SIP | SIP Line Signalling |
| TCP | 8080 | HTTP | Browser access to the Delta Server application. |
| UDP | 8089 | Enconf | From the IP Office to the Conferencing Center Server Service. User access to the conference center is direct via HTTP sessions. |
| TCP | 8888 | HTTP | Browser access to the IP Office ContactStore (VRL) application. |
| UDP | 49152-53247* | RTP/RTCP | Dynamically allocated ports used during VoIP calls for RTP and RTCP traffic. The port range can be adjusted through the System | Gatekeeper tab. |
| UDP | 50791 | IPO Voicemail | To voicemail server address. |
| UDP | 50793 | IPO Solo Voicemail | From IP Office TAPI PC with Wave drive user support. |
| UDP | 50794 | IPO Monitor | From the IP Office Monitor application. |
| UDP | 50795 | IPO Voice Networking | Small Community Network signalling (AVRIP) and BLF updates. Each system does a broadcast every 30 seconds. BLF updates are sent required up a maximum of every 0.5 seconds. |
| UDP | 50796 | IPO PCPartner | From an IP Office application (for example Phone Manager or SoftConsole). Used to initiate a session between the IP Office and the application. |
| UDP | 50797 | IPO TAPI | From an IP Office TAPI user PC. |
| UDP | 50798 | (UDP) | IP Office Manager and UpgradeWizard |
| UDP | 50799 | IPO BLF | Broadcast to the IP Office LAN and the first 10 IP addresses registered from other subnets. |
| UDP | 50800 | IPO License Dongle | To the License Server IP Address set in the IP Office configuration. |
| UDP | 50801 | EConf | Conference Center Service to IP Office. |
| TCP | 50802 | Discovery | IP Office discovery from Manager. |
| TCP | 50804* | HTTP | IP Office configuration settings access. |
| TCP | 50805* | HTTPS | TLS Secure |
| TCP | 50808* | HTTP | IP Office system status access. |
| TCP | 50812* | HTTP | IP Office security settings access. |
| TCP | 50813* | HTTPS | TLS Secure |
Pictures work better, so here are the listing of parts that IPOCC uses to communicate. Used_TCP_Ports_IPOCC