Technical Documentation
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Example: Voice-over-IP Service Definition
The following example shows you how to create a voice-over-IP (VoIP) service.
Requirements
This example uses the following software and hardware components:
- JunosE Release 7.1.0 or higher-numbered releases
- E Series router (ERX7xx models, ERX14xx models, the ERX310 router, the E120 router, or the E320 router)
- ASIC-based line modules that support Fast Ethernet or Gigabit Ethernet
Overview
A VoIP service is a session border controller (SBC) media gateway (MG)-based service that has upstream and downstream components.
The IP address and port for both the subscriber and the opposite end of the phone call were originally negotiated with the SBC. The VoIP service learns the IP addresses and ports for both ends of the call, and then specifies that any traffic to either end is put in the voice traffic class.
Creating a Voice-over-IP Service
Step-by-Step Procedure
This example illustrates how to create a VoIP service:
 | Note: Commented text explains the parameterized values in the example of the service definition macro file. Each example is followed by examples of RADIUS information and the CLI command that you can use to activate a subscriber service session. |
!parameterizes source address and port, destination address and port, and protocol type
<# mgFlow(upDA, upDPort, downDA, downDPort, protType) #>
<# uid := app.servicemanager.getUniqueId #>
<# name := "SM-mgFlow-" $ uid #>
<# oname := "SM-O-mgFlow-" $ uid #>
classifier-list <# name #> <# protType #> any <#upDA #> 0.0.0.0 eq <# upDPort; '\n' #>
policy-list <# name; '\n' #>
classifier-group <# name #> precedence 2000
traffic-class voice
forward
classifier-list <# oname #> <# protType #> any <#downDA #> 0.0.0.0 eq <# downDPort; '\n' #>
policy-list <# oname; '\n' #>
classifier-group <# oname #> precedence 2000
traffic-class voice
forward
profile <# name ; '\n' #>
ip policy input <# name #> statistics enabled merge
ip policy output <# oname #> statistics enabled merge
<# env.setResult("activate-profile", name) #>
<# endtmpl #>
Sample RADIUS Attributes
Step-by-Step Procedure
Table 1 provides the sample RADIUS attributes that you can use to activate the VoIP service
Table 1: Sample RADIUS Attributes
RADIUS Attribute | Tag | Value |
|---|---|---|
username | none | client1@isp1.com |
activate-service | 1 | mgFlow(10.10.10.10, 1234, 192.168.45.54, 1234, udp) |
Sample CLI Command
Step-by-Step Procedure
To activate a subscriber session with the configured VoIP service:
