1. A telephonic apparatus, comprising: a module to make Voice over Internet Protocol (VoIP) calls; and a user interface of the telephonic apparatus to display an advertisement, the advertisement containing a reference to telephonic contact information of an advertiser of the advertisement, the module to make a VoIP call to the advertiser based on the reference to the telephonic contact information of the advertiser in response to a user request received in the user interface of the telephonic apparatus.