Cisco SPA2102-AN - Single Port Router Administration Manual page 59

Configuring Voice Services
Managing Caller ID Service
Cisco Small Business ATA Administration Guide
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
Reversal
d) Bellcore Onhook FSK w/o Ring
e) ETSI Onhook FSK w/o Ring
Reversal
f) Bellcore/ETSI Offhook FSK
Polarity CAS
(DTAS)
OSI
Polarity CAS
(DTAS)
CAS
(DTAS)
FSK
DTMF
DTMF/
FSK
FSK
FSK
Wait For
FSK
ACK
4
First
Ring
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