April 2008, Version A
250-0800-06, Version A
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45
5
Sig
nali
ng
Provi
sionin
g
Packet Voice Processor Commands Manual
Chapter 5: Signaling Provisioning
5.1 Overview
The Packet Voice Processor
TM
supports the following signaling protocol capabilities
for voice calls.
RFC 3261 SIP (Session Initiation Protocol)
RFC 2327 SDP (Session Description Protocol)
RFC 3262 Reliability of Provisional Responses in Session Initiation Protocol
RFC 3264 An Offer/Answer Model with Session Description Protocol
RFC 3265 SIP Specific Event Notification
The Packet Voice Processor system utilizes an OOB (Out-of-Band) Signaling
Interface (Sig/O) that is a physical port (RJ-45) located on each Switch Control card
(see
). This signaling interface provides a dedicated channel
for system signaling. The signaling interface supports 1000Base-T Ethernet.
Signal provisioning a Packet Voice Processor system requires both profile and policy
provisioning. The Packet Voice Processor is designed so that user created
profiles
apply specifically provisioned
policies
to IP packet streams (see
“Profiles and Policies”, on page 45
Note
There are 2 types of Packet Voice Processor signaling commands: commands used
to provision signaling for a Packet Voice Processor (profiles and policies), and
commands used to capture and display the accumulated signaling statistics (call
trace, SIP statistics, and call statistics) for a Packet Voice Processor. This chapter
discusses the commands used to provision signaling, refer to
for information about the signaling statistics commands.
5.2 Profiles and
Policies
The Packet Voice Processor is designed so that user created
profiles
apply
specifically provisioned
policies
to IP packet streams. The Packet Voice Processor
requires that both profiles and policies be created for signaling, transcoding, and
voice quality purposes.
displays a schematic that shows how profiles, policies, and
the VQA™ technology are designed to interact for Packet Voice Processor system
operation. In this figure, 3 SIP proxy servers are sending IP packet streams to a
provisioned Packet Voice Processor system.
Using the Signaling Profile commands (see
Table 5-1, “Profile Provisioning
) 2 IP signaling addresses are created on the Packet Voice
Processor (10.67.1.240 and 10.67.1.280) to accept packets from one of the three
designated SIP proxy servers. In addition, 3 individual profiles have been created for
the 2 IP signaling addresses on the Packet Voice Processor.
