Avaya Aura Communication Manager 7.1 User Manual

DDT; Reviewed:
SPOC 10/18/2017
Solution & Interoperability Test Lab Application Notes
©2017 Avaya Inc. All Rights Reserved.
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CM71SM71-VzIPCC
3. The Verizon IP Toll Free service places a call to the target party (alternate destination), but
the target party is busy or otherwise unavailable.
4. The Verizon IP Toll Free service notifies the redirecting/referring party (Communication
Manager) of the error condition.
5. Communication Manager routes the call to a local agent, phone, or announcement.
However, as noted in Section 2.2, except for egregious configuration errors, this “REFER error
handling” scenario could not be verified on the production Verizon circuit used for testing. On the
production circuit, Verizon sends a SIP BYE which terminates Communication Manager vector
processing for failure scenarios. For example, if a 486 Busy is received from the target of the
REFER, Verizon will send a BYE immediately after a “NOTIFY/sipfrag 486”, which precludes
any further call processing by Communication Manager. As another example, in cases where mis-
configuration is introduced to cause the Refer-To header to be malformed (e.g., no “+” in Refer-
To), Verizon will send a BYE immediately after a “NOTIFY/sipfrag 603 Server Internal Error”. If
REFER is configured in the vector, but Network Call Redirection is not enabled for the SIP trunk
group, Communication Manager will not send the REFER to Verizon, and vector processing will
continue at the step following the route-to step that would normally trigger the REFER.
Verizon
IP Toll Free
Service
1
1
1
PSTN
PSTN
Phone
1
Avaya Session
Border
Controller
Avaya Aura®
Session
Manager
OK
PHONEMESSAGE
CONTACTS MENU CALL LOG
VOLUME
ABC DEF
JKL MNOGHI
1 2 3
4 5 6
TUV WXYZPQRS
7 8 9
*
[
0 #
.,@
MUTESPEAKER
HEADSET
FORWARD
Agent / Phone
Avaya Aura®
Communication
Manager
1
2
Alternate
Destination
3 3
2
2 4
4
4
OK
PHONEMESSAGE
CONTACTS MENU CALL LOG
VOLUME
ABC DEF
JKL MNOGHI
1 2 3
4 5 6
TUV WXYZPQRS
7 8 9
*
[
0 #
.,@
MUTESPEAKER
HEADSET
FORWARD
5
Agent / Phone
Figure 5: Inbound Verizon IP Toll Free– Post-Answer SIP REFER Redirection Unsuccessful

Avaya Aura Communication Manager 7.1 Specifications

General

Brand	Avaya
Model	Aura Communication Manager 7.1
Category	Conference System
Language	English