- Microsoft Lync / Skype for Business
- Introduction
- Integration features
- Example on-prem deployment
- On-prem Pexip Infinity configuration
- On-prem Lync/Skype server configuration
- Adding more on-prem nodes or locations
- Example public DMZ deployment
- Public DMZ Infinity configuration
- Configuring Infinity as a Lync/Skype gateway
- Certificate creation and requirements
- Presence and contact lists
- Multiple SIP domains (public DMZ)
- Configuring nodes to work behind NAT
- Firewall ports
- Troubleshooting
- Using Lync/Skype clients with Pexip Infinity
Download Lync/Skype guide as PDF
Firewall ports for Lync / Skype for Business integrations
When integrating Pexip Infinity with Microsoft Lync and Skype for Business
| Direction | Purpose | Protocol | Source | Destination |
|---|---|---|---|---|
| Between the Lync FEP and the Conferencing Node (bidirectional) | SIP signaling | TCP | <any> | 5061 |
| From Lync clients towards the Conferencing Nodes | RTP/RTCP media | UDP | <any> | 40000–49999 |
| From Lync clients towards the Conferencing Nodes | HTTP conference avatar | TCP | <any> | 80 |
| From the Conferencing Nodes towards a Lync Edge server | RTP/RTCP/RDP media | UDP / TCP | 40000–49999 | 50000–59999 |
| From the Conferencing Nodes towards Lync clients | RTP/RTCP/RDP media | UDP / TCP | 40000–49999 | <any> |
| From the Conferencing Nodes towards the TURN server | RTP/RTCP media | UDP | 40000–49999 | 3478 |
For a complete list of Pexip Infinity Conferencing Node port usage, see Pexip Infinity port usage.
* Note that where this documentation refers to "Lync", it represents both Microsoft Lync and Skype for Business unless explicitly stated otherwise.