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Help contents > Configuring the MCU > Configuring SIP settings

Configuring SIP settings

To configure SIP settings on the MCU, go to Settings > SIP.

To allow conference participants with SIP endpoints to connect to the MCU by dialing a directory number rather than an IP address, you must configure a SIP registrar. The settings on this page control the MCU's interaction with the SIP registrar and with SIP endpoints.

Note that SIP endpoints will be unable to connect to conferences that require encryption. There is no standard for encryption on SIP.

SIP calls will select the audio and video codecs to use from those allowed on the Settings > Conference page, unless the call is with a endpoint configured with a Custom codec (refer to Configuring SIP endpoints for more information).

Refer to this table for assistance configuring the SIP settings. After making any configuration changes, click Apply changes.

 

Field Field description Usage tips
SIP registration settings

Specifies the level of SIP registration for the MCU.

Can be set to:

  • No registration: The MCU will not register with the SIP registrar. This means that a user with a SIP endpoint can only connect to the MCU by dialing an IP address
  • Register MCU only: Enables conference participants to dial in to the auto attendant of the MCU
  • Allow conference registration: Enables conference participants to dial directly in to conferences. For this to work, you must configure the SIP registrar with conference IDs
SIP registrar address

Identifies the network address of the SIP registrar to which MCU registrations should be made.

This can be specified either as a host name or as an IP address. This field will have no effect if SIP registration settings is set to No registration.
SIP registrar type

Choose between:

  • Standard SIP: for non-Microsoft SIP registrars
  • Microsoft LCS: for Microsoft SIP registrars

Your choice is dependent on the type of SIP registrar you are using.

If you are using Microsoft LCS, you will also need to configure LCS to recognize the MCU's IP address and treat it as authenticated.

This field will have no effect if SIP registration settings is set to No registration.
Username

The login name for the MCU on the SIP registrar.

You need to configure the SIP registrar with details of the devices that will register with it and create a login for each device.

If you are using Microsoft LCS, you need to enter the full URI (for example, MCU@mylcs.com).

Password

The password for the MCU on the SIP registrar.

You need to configure the SIP registrar with details of the devices that will register with it and create a login for each device. For Microsoft LCS, do not enter a password.

SIP proxy address

Identifies the network address of the SIP proxy.

If set, the proxy is used for all SIP calls, whether
through a registrar or not.
Outgoing transport: TCP or UDP

Whether the outgoing transport will be TCP or UDP.

If your SIP devices use TCP, select TCP as the outgoing transport. If your SIP devices use UDP, select UDP as the outgoing transport. The MCU accepts connections on both TCP and UDP.

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