The Intercom feature provides the ability to establish auto-answered calls on snom IP phones allowing paging among them. A typical use case would be an announcement in an office environment you would like to make from one colleague to another or to a group of colleagues, respectively. It is only usable with Snom Desk IP Phones "D Series". Restrictions may apply in certain SIP Server environments.
The phone calls the configured extension
Hang up the receiver.
Intercom call will be closed as any normal call.
An SIP INVITE message containing the "Alert-Info" Header will be sent out. The "Alert-Info" Header will force the called extension(s) to auto-answer the call.