Reviewing and Selecting Trunk Types Chapter 5: Trunk Planning and Ordering
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ESF or D4 framing formats
B8ZS or AMI line coding.
5.3.4 Analog Wink-Start Trunks (Analog DID)
Analog wink-start trunks allow external callers to dial a user’s phone number directly,
without having to use an auto-attendant or operator. Analog wink-start trunks support
only inbound calls; they are not capable of handling outbound calls.
Analog wink-start trunks support:
Inbound calls (outbound calls are not supported)
ANI
DID
DNIS
Analog provisioning is provided by the wink-start protocol and Dual-Tone Multi-
Frequency (DTMF) signaling.
If ANI is being used, the star (*) key must be used to delimit the ANI digits from the DID/
DNIS digits—that is:
<DID>
<DNIS>
*<ANI>*<DID/DNIS>*
5.3.5 Digital Wink-Start Trunks
Digital wink-start trunks allow external callers to dial a user’s phone number directly,
without having to use an auto-attendant or operator. Digital wink-start trunks support both
inbound and outbound calls.
Digital wink-start trunks support:
Inbound calls
Outbound calls
ANI
DID
DNIS
Digital provisioning is provided by the wink-start protocol (often called E&M wink-start)
and Dual-Tone Multi-Frequency (DTMF) signaling. ShoreGear switches support
ESF or D4 framing formats
B8ZS or AMI line coding.
If ANI is being used, the star (*) key must be used to delimit the ANI digits from the DID/
DNIS digits—that is:
<DID>
<DNIS>
*<ANI>*<DID/DNIS>*
5.3.6 BRI Trunks
BRI trunks are flexible trunks that support both inbound and outbound calls.
PRI trunks support:
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