R E V I E W D R A F T # 1 — C I S C O C O N F I D E N T I A L
3-8
Cisco WRP500 Administration Guide
Chapter 3 Configure Voice Services
Optimize Fax Completion Rates
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).
Optimize Fax Completion Rates
Issues can occur with fax transmissions over IP networks, even with the T.38 standard, which is
supported by the WRP500. You can adjust several settings on your WRP500 to optimize your fax
completion rates.
Polarity
Reversal
First
Ring
CAS
(DTAS)
DTMF/
FSK
Polarity
Reversal
CAS
(DTAS)
FSK
CAS
(DTAS)
Wait For
ACK
FSK
First
Ring
FSK
OSI
FSK
a) Bellcore/ETSI Onhook Post-Ring FSK
d) Bellcore Onhook FSK w/o Ring
f) Bellcore/ETSI Offhook FSK
c) ETSI Onhook Pre-Ring FSK/DTMF
e) ETSI Onhook FSK w/o Ring
DTMF
b) ETSI Onhook Post-Ring DTMF
First
Ring
