Cisco Systems SPA3102, SPA2102, WRP400, SPA8000, PAP2T manual Cas

Configuring Voice Services	4
Managing Caller ID Service

There are three types of Caller ID:

•On Hook Caller ID Associated with Ringing — This type of Caller ID is used for incoming calls when the attached phone is on hook. See the following figure (a) – (c). All CID methods can be applied for this type of CID.

•On Hook Caller ID Not Associated with Ringing — This feature is used to send VMWI signal to the phone to turn the message waiting light on and off (see Figure 1 (d) and (e)). This is available only for FSK-based CID methods: (Bellcore, ETSI FSK, and ETSI FSK With PR).

•Off Hook Caller ID — This is used to delivery caller-id on incoming calls when the attached phone is off hook (see the following figure). This can be call waiting caller ID (CIDCW) or to notify the user that the far end party identity has changed or updated (such as due to a call transfer). This is available only for FSK-based CID methods: (Bellcore, ETSI FSK, and ETSI FSK With PR).

a) Bellcore/ETSI Onhook Post-Ring FSK

First

Ring

b) ETSI Onhook Post-Ring DTMF

First

Ring

c) ETSI Onhook Pre-Ring FSK/DTMF

Polarity	CAS
Reversal	(DTAS)

d)Bellcore Onhook FSK w/o Ring

OSI

e)ETSI Onhook FSK w/o Ring

Polarity	CAS
Reversal	(DTAS)

f) Bellcore/ETSI Offhook FSK

CAS	Wait For
(DTAS)	ACK

FSK

DTMF

DTMF/

FSK

FSK

FSK

FSK

First Ring

ATA Administration Guide 59