At Zoom, we are hard at work to provide you with the best 24x7 global support experience during this pandemic. As part of this ongoing commitment, please review our updated Support Guidelines.

SIP/H.323 Rooms Directory Follow


The H.323/SIP Rooms Directory allows you to enter H.323 IP addresses or SIP URIs as contacts for use with the H.323/SIP Room Connector Call-Out feature on the PC and Mac Zoom Client.


  • You must have at least one Room Connector port purchased
  • Adding a room system to the Directory requires Owner or Admin privileges on the account
  • Zoom Client version 3.5 or higher is required to access the Directory and Call-Out features

Adding a room to the H.323/SIP room directory

  1. Log in to your account as and Owner or Admin then go to Advanced> H.323/SIP Room Connector.
  2. Click the Devices tab.
  3. Click Add a H.323/SIP Room
  4. Enter the room details:
    • Protocol: H.323 or SIP
    • Display Name: Enter your preferred name to be seen in the Directory
    • IP Address or H.323 Extension: Enter the public IP address (can include E.164 Address) or the SIP URI of the room system
    • Encryption: Auto, Yes, or No
  5. Click Add

Note: You can Edit or Delete the directory contact here by searching by display name, or select multiple devices to delete at a time. You can also bulk add contacts via a CSV file - click Import H.323/SIP Rooms on the H.323/SIP Rooms page for more information, or download our sample CSV file below.

Calling an H.323/SIP room


  1. Start a Zoom Meeting.
  2. Click Invite.
  3. Click Room System.
  4. Click Call Out.
  5. From the dropdown, select the room you want to call out to.
  6. Click Call

From the contact list

  1. Click Contacts
  2. Click Room Systems.
  3. Double-click the room, to start a meeting with the room.