Go to the VoIP section, and in Account settings do the following:
To create a new account, click Add.
In the Account information section, select Default account.
In the Account credentials section:
In the User ID, Authentication ID, and the Caller ID fields, enter the extension number that was assigned when you added the SIP intercom in Security Center.
In the Password field, enter the password that was set when you added the SIP intercom in Security Center.
In the Domain name and Registrar address fields, enter the IP address of the Sipelia Server.
(Optional) Select Auto answer to enable the intercom to auto-answer calls.
Click the Video tab.
From the Resolution drop-down list, select 720p (1280x720).
In the Frame rate field, enter 15.
From the View area drop-down list, select Default.
From the H.264 Profile drop-down list, select Baseline.
Click Save.