# Joining a conference

A conference held on TrueConf MCU can be joined via SIP and H.323 protocols.

One can view the links for joining the event by clicking the /docs/mcu/media/gui/info/en.png button next to the name of the ongoing conference on its page.

Check here for more details on the conference route, ID, and PIN.

# For TrueConf users

TrueConf users can join conferences hosted on TrueConf MCU with the help of the call string in the format:

  1. Via SIP protocol (if its use is allowed in the settings):

    • #sip:<id>:<pin>@<server_name>, where:

      - `<server_name>` — the domain name of the PC where <const name="product-mcu"/> is installed, or its IPv4 address
      
      - `<id>` — route or conference ID
      
      - `<pin>` — conference PIN (if available).
      
    • #sip:@<server_name>,<id>#, where:

      - `<server_name>` — the domain name of the PC where <const name="product-mcu"/> is installed, or its IPv4 address
      
      - `<id>` — route or conference ID.
      
    • #sip:@<server_name>, where:

      - `<server_name>` — the domain name of the PC where <const name="product-mcu"/> is installed, or its IPv4 address. In this case, a user will be directed to the [waiting room](../control-panel/#waiting-room) and will need to dial the ID with the keypad in order to join the conference.
      

2. Via H.323 protocol (if its use is enabled in the settings):

  • #h323:<id>:<pin>@<server_name>, where:

    • <server_name> — the domain name of the PC where TrueConf MCU is installed, or its IPv4 address

    • <id> — route or conference ID

    • <pin> — conference PIN (if available).

  • #h323:@<server_name>,<id>#, where:

    • <server_name> — the domain name of the PC where TrueConf MCU is installed, or its IPv4 address

    • <ID> — the route or conference ID.

  • #h323:@<server_name>, where:

    • <server_name> — the domain name of the PC where TrueConf MCU is installed, or its IPv4 address. In this case, a user will be directed to the waiting room and will need to dial the ID with the keypad in order to join the conference.

# For SIP/H.323 endpoints

To make a call to a conference on TrueConf MCU from a software or hardware endpoint via SIP or H.323 protocol, use one of the following formats:

  • <id>:<pin>@<server_name>, where:

    • <server_name> — the domain name of the PC where TrueConf MCU is installed, or its IPv4 address

    • <id> — route (for endpoints allowing users to type characters) or conference ID

    • <pin> — conference PIN (if available).

  • <server_name>, where:

    • <server_name> — the domain name of the PC where TrueConf MCU is installed, or its IPv4 address. In this case, a user will be directed to the waiting room and will need to dial the ID with the keypad in order to join the conference.

Additional stream optimization is used when joining a meeting from TrueConf Group endpoints.