McDewey

Attribute Description Digit String Also referred to as number string, phone number, number, or E164 number.Consists entirely of digits 0 through 9 with an optional leading plus symbol (+).

Example:
8675309
123456789
+1972525222
+442084445555
+85225353333 Dialed Number Identification Service (DNIS) This is the Called Number or the Destination Number for a call. Automatic Number Identification (ANI) This is the Calling Number or the Originating Calling Number for a call. This can also be referred to as the Calling Line Identifier (CLID) which can also be titled the Caller ID. Uniform Resource Identifier (URI) A URI is either a sip: or tel: string most commonly used with VoIP Protocols SIP and H323.

URL Examples:
sip:user@example.com
sip:user@sub.example.com
sip:user@192.0.2.1 sip:user@2001:4860:4860::8888
tel:8675309
sip:example.com CID Examples:
cid:orange@example.com
cid:orange@sub.example.com
cid:orange@192.0.2.1 cid:orange@2001:4860:4860::8888 Note: Cisco bug ID CSCua14749 Carrier-id