eTo avoid the Room Connector splash screen, you can enter the meeting details in the dial string on the SIP/H.323 device and join directly into the meeting.

The meeting must be hosted by a Licensed user for an H.323 or SIP device to join. If the host's account does not have an available Room Connector license, but the attendees do, you can use the attendee's Room Connector license. 

Note: If you are joining a Zoom for Government meeting, please see our join instructions here.

This article covers:

• H.323 dial string format
  • Enter a meeting in Gallery View
  • Enter a meeting in Full Screen
  • Enter a Meeting with the Host Key
  • Enter a Meeting with dual video enabled
• SIP dial string format
  • Enter a meeting in Gallery View
  • Enter a meeting in Full Screen
  • Enter a meeting with the Host Key
  • Enter a Meeting with dual video enabled
  • Enter a meeting with Dial Code
    • Dial code features
  • Enter a meeting with a Reserved code
• SIP/H.323 configuration and video layout dial strings
• Advanced commands
  • Dial commands

H.323 dial string format

When dialing into a Zoom Meeting or Zoom Webinar using the H.323 protocol, you can dial into a specific regional data center by utilizing the IP address for the data center listed on the H.323/SIP Room Connector page of your account.

Full H.323 dial string format

[IP Address]##[Meeting ID]#[Passcode]#[Command]#[Host Key]

Enter a meeting in Gallery view (default)

Meetings without a passcode:

[IP Address]##[Meeting ID]
Example: 192.168.1.25##123456789

Meetings with a passcode:

[IP Address]##[Meeting ID]#[Passcode]
Example: 162.168.1.25##123456789#12345

Enter a meeting in full screen

Meetings without a passcode:

[IP Address]##[Meeting ID]##11
Example: 192.168.1.25##123456789##11

Meetings with a passcode:

[IP Address]##[Meeting ID]#[Passcode]#11
Example: 192.168.1.25##123456789#12345#11

Enter a meeting with a Host Key

Meetings without a passcode:

[IP Address]##[Meeting ID]###[Host Key]
Example: 192.168.1.25##123456789###123456

Meetings with a passcode:

[IP Address]##[Meeting ID]#[Passcode]#[Layout]##[Host Key]
Example: 192.168.1.25##123456789#12345#11##123456

Note: For some devices, please try [IP Address]##[Meeting ID]*[Passcode]*[Command]

Enter a meeting with dual video enabled

Meetings without a passcode:

[IP Address]##[Meeting ID]##308
Example: 192.168.1.25##123456789##308

Meetings with a passcode:

[IP Address]##[Meeting ID]#[Passcode]#308
Example: 192.168.1.25##123456789#12345#308

SIP dial string format

When dialing into a Zoom Meeting or Zoom Webinar using the SIP protocol, you can dial into a specific regional data center by utilizing the IP address or SIP Domain for the data center listed on the H.323/SIP Room Connector page of your account.

Full SIP dial string format

[Meeting ID].[Passcode].[Command].[Host Key].[Reserved].[Dial Code]@[IP Address]

or

[Meeting ID].[Passcode].[Command].[Host Key].[Reserved].[Dial Code]@zoomcrc.com

Enter a meeting in Gallery view (default)

Meetings without a passcode:

[Meeting ID]@[IP Address]
Example: 123456789@192.168.1.25

Meetings with a passcode:

[Meeting ID].[Passcode]@[IP Address]
Example: 123456789.12345@192.168.1.25

Enter a meeting in full-screen

Meetings without a passcode:

[Meeting ID]..11@[IP Address]
Example: 123456789..11@192.168.1.25

Meetings with a passcode:

[Meeting ID].[Passcode].11@[IP Address]
Example: 123456789.12345.11@192.168.1.25

Enter a meeting with dual video-enabled

Meetings without a passcode:

[Meeting ID]..308@[IP Address]
Example: 123456789..308@192.168.1.25

Meetings with a passcode:

[Meeting ID].[Passcode].308@[IP Address]
Example: 123456789.12345.308@192.168.1.25

Enter a meeting with Host Key

Meetings without a passcode:

[Meeting ID]...[Host Key]@[IP Address]
Example: 123456789...123456@192.168.1.25

Meetings with a passcode:

[Meeting ID].[Passcode]..[Host Key]@[IP Address]
Example: 123456789.12345..123456@192.168.1.25

Enter a meeting with Dial Code

Meetings without a passcode:

[Meeting ID].....[Dial Code]@[IP Address]
Example: 123456789.....1a2bc4d@192.168.1.25

Meetings with a passcode:

[Meeting ID].[Passcode]....[Dial Code]@[IP Address]
Example: 123456789.12345....1a2bc4d@192.168.1.25

Dial code features

If the Dial Code starts with 1, the following features will be enabled:

• Bypass the Waiting Room
• Utilize the attendee's CRC license
• Determines whether the device is a guest
• Enables mute syncing between the device and in-meeting interface

If the Dial Code starts with 2, the following features can be achieved:

• Bypass the Waiting Room
• Determines whether the device is a guest

Enter a meeting with a Reserved code

Meetings without a passcode:

[Meeting ID].....[Reserved]@[IP Address]
Example: 123456789....02.@192.168.1.25

123456789....03.@192.168.1.25

Meetings with a passcode:

[Meeting ID].[Passcode]....[Reserved]@[IP Address]
Example: 123456789.12345...02.@192.168.1.25

123456789.12345...03.@192.168.1.25

Note: When the value of reserved is 02 or 03, it means the dial string was pushed to the device by the Enhanced Zoom Connector.

SIP/H.323 configuration and video layout dial strings

You can change the default video layout on your H.323/SIP Configuration page. If you have chosen a default video layout besides Gallery View, the dial string listed above for Gallery View will join with the selected default video layout. Entering 11 in the dial string will move to the next video layout option and 1111 will move to the third video layout option.

Selected Default	11 in Dial String	1111 in Dial String
Gallery View	Full Screen	Active Presence
Full Screen	Active Presence	Gallery View
Active Presence	Gallery View	Full Screen

Advanced commands

When joining from a SIP/H.323 device into a Zoom Meeting, advanced commands can be added to the dial string to enable certain features, or force certain in-call behavior as well. 

For both SIP and H.323 dial strings, the command will be added at the end of the string.

Dial commands

Command	Description
100003	Force sending default video size to the device, max 720p
100004	Favor video for bandwidth (Uses 3/4 Bandwidth for video and 1/4 bandwidth for content).
100005	Equal shared bandwidth for both video and content.
100006	Favor content sharing for bandwidth (Uses 3/4 bandwidth for content and 1/4 Bandwidth for video).
100009	Enable AES-256 encryption.
200001	Force out-of-band DTMF signal.
200006	Suppress audio prompts when joining a meeting.
200009	Video sharing mode for device sharing.
300001	Use Audio Volume Level 1 when joining a meeting.
300002	Use Audio Volume Level 2 when joining a meeting.
300003	Use Audio Volume Level 3 when joining a meeting.
12	Unmutes the device when joining a meeting.
306	Music sharing mode for device sharing.
307	Removes network icons from the in-meeting overlay.
308	Enables dual-screen mode, with Gallery view and Active Speaker view on each display.
309	Enables 1080p video support.
502	Enable noise suppression.
503	Disable noise suppression.
504	Suppress the visual menu. Can be re-enabled by pressing 7 on a DTMF remote.
505	Disables dual-stream video and forces video and content as a single-stream.
506	Displays the in-meeting chat window higher on the display.
508	Suppress in-meeting reactions displayed by other participants.
601	Hides the meeting ID, when a room system is the first participant to join.
602	Suppresses in-meeting icons from being displayed.
603	Removes participant names when viewing participant video feeds.
606	Suppresses the entire in-meeting overlay including participant names for video feeds, network icons, and other visual icons.
608	Enables dual-screen mode, with Gallery view spread across both displays.
704	Moves closed captions to the top of the display.
705	Enables Music Mode and disables noise suppression (503)
709	Combines the following dial strings: 100006: Content bandwidth control: Favor Content (2MB total) 200009: Video sharing mode for device sharing. 306: Music sharing mode for device sharing 309: Enable 1080p main video support