Lists capabilities a telecommunication device may have (associated with a phone number)
tcVoice: Voice : This device can receive voice calls (i.e. talking to another person, or a recording device, or a voice activated computer)
tcFax: Fax : This device can receive faxes.
tcData: Data : This device can receive data calls (i.e. modem)
tcTty: Text : This device is a text telephone.
tcSms: SMS : This device can receive SMS messages