Customer Premise Equipment – Cisco SIP Server is the CPE device
in this case.
CTI
Computer Telephony Integration
DNIS
Dialed Number Identification Service
IP
Internet Protocol
MS
Media Server
PBX
Private Branch Exchange
PSX
Policy Server Exchange
SDOP
Signaled Digits Out-Pulsed
SIP
Session Initiation Protocol
UUI
User to User Information
1 Document Overview
These Application Notes describe the configuration steps required for the Sonus Session Border Controller
(SBC) 1000 and SBC 2000 to interoperate with the Lync 2013 system and a SIP trunk group to PSTN.
The objective of the document is to describe the configuration procedures to be followed during interoperability
testing of SBC 1000 and SBC 2000 with Lync 2013 server over SIP trunk to PSTN.
For additional information on Sonus SBC 1000 and SBC 2000 series, visit http://www.sonus.net
For additional information on Lync 2013, visit http://www.microsoft.com
The Sonus SBC 1000 and SBC 2000 session border controllers are designed to use the same application
software, boot image and Survivable Branch Appliance software. They differ in the number of physical Ethernet
connections and processing power but are otherwise viewed from a software standpoint as being the same.
With this in mind, this particular effort was tested with an SBC 1000 but is fully applicable to an SBC 2000.
2 Introduction
This document provides a configuration guide for Sonus SBC 1000 Series (Session Border Controller) when
connecting to a SIP trunk group and a Lync 2013.
The Sonus SBC 1000 and SBC 2000 are Session Border Controllers that connect disparate SIP trunks, SIP
PBXs, and communication applications within an enterprise. The SBC can also be used as a SIP routing and
integration engine.
The Sonus SBC is the point of connection between the SIP trunk group to PSTN and the Lync 2013.
2.1 Audience
This technical document is intended for telecommunication engineers with the purpose of configuring the Sonus
SBC 1000 and SBC 2000 and aspects of the SIP trunk group together with Lync 2013 product. There will be
steps that require navigating the third-party and Sonus SBC Command Line Interface (CLI). Understanding the
basic concepts of IP/Routing and SIP/RTP is also necessary to complete the configuration and for
troubleshooting, if necessary.
This configuration guide is offered as a convenience to Sonus customers. The specifications and information
regarding the product in this guide are subject to change without notice. All statements, information, and
recommendations in this guide are believed to be accurate but are presented without warranty of any kind,
express or implied, and are provided “AS IS”. Users must take full responsibility for the application of the
specifications and information in this guide.
Technical support on SBC 1000 and SBC 2000 can be obtained through the following:
A simulated enterprise site consisting of a Lync 2013 and a SIP trunk group to PSTN connected over the SBC
1000. The SBC 1000 was running software version 4.1.0 Build 369 during testing.
Network Topology
Figure 2.1 Network Topology
The figure above represents the equipment used for the integration and certification testing. The SBC 1000 is
used to route and facilitate calls between the PSTN and the Lync 2013 system.
The SBC 1000 under test has 2 Ethernet ports configured. The SBC 2000 can have up to 4 physical Ethernet
ports and two physical T1/E1 ports. For more information on Media port deployment options or other network
connectivity queries, refer to the SBC 1000 Network Deployment Guide or contact your local Sales team for
information regarding the Sonus Network Design professional services offerings.
The Sonus SBC 1000 allows you to configure the identification information, Physical Data Layer, and Networking
Layer for the Ethernet ports. If you want to change the IP Address, you must configure the associated Logical
Interface or use the Modify Ethernet IP task found under the Tasks tab.
Settings for the Ethernet connection between the Sonus SBC 1000 and the public Internet are shown in the
figures below.
SIP Profiles control the how the Sonus SBC 1000/2000 communicates with SIP devices. They control important
characteristics such as: session timers, SIP header customization, SIP timers, MIME payloads, and option tags.
The default SIP profile used for the SBC 1000 for this testing effort is shown in the following figure.
Media Profiles allow you to specify the individual voice codecs and their associated settings for inclusion in a
Media List. Different codecs provide varying levels of compression allowing one to reduce bandwidth
requirements at the expense of voice quality.
The Media Profile Used for the SBC 1000 is shown in the following figure and is for reference only.
SIP Server Tables contain information about the SIP devices connected to the Sonus SBC 1000/2000. The
entries in the tables provide information about the IP Addresses, ports, and protocols used to communicate with
each server. The Table Entries also contain links to counters that are useful for troubleshooting.
Figure 3.8 SIP Server Table
Static IP Route Table
The Static IP route table feature allows you to route subnets to different IP gateway..
Signaling groups allow telephony channels to be grouped together for the purposes of routing and shared
configuration. They are the entity to which calls are routed, as well as the location from whichCall Routesare
selected. They are also the location from which Tone Tables and Action Sets are selected. In the case of SIP,
they specify protocol settings and link to server, media and mapping tables.
Call Routing allows calls to be carried between signaling groups, thus allowing calls to be carried between ports,
and between protocols (like ISDN to SIP). Routes are defined by Call Routing Tables, which allow for flexible
configuration of which calls are carried, and how they are translated. These tables are one of the central
connection points of the system, linking Transformation Tables, Message translations, Cause Code Reroute,
Tables, Media Lists and the three types of Signaling Groups (ISDN, SIP and CAS).
Transformation Tables facilitate the conversion of names, numbers and other fields when routing a call. They
can, for example, convert a public PSTN number into a private extension number, or into a SIP address (URI).
Every entry in a Call Routing Table requires a Transformation Table, and they are selected from there. In
addition, Transformation tables are configurable as a reusable pool that Action Sets can reference.
Figure 3.12 Transformation Table Match 713343376 range
Windstream requires authentication when establishing a SIP Trunk group to the SBC 1000. The Contact
Registrant Table is used for registration with remote address and specific configuration.The Remote
Authorization table is used for authorization configuration for remote registration.
The Sonus SBC 1000 allows you to configure the Identification information, Physical Data Layer, and Networking
Layer for the Ethernet ports. If you want to change the IP Address, you must configure the associated Logical
Interface or use the Modify Ethernet IP task found under the Tasks tab.
Settings for the Ethernet connection between the Sonus SBC 100 and Lync 2013 are shown in the figures below.
SIP Profiles control the how the Sonus SBC 1000/2000 communicates with SIP devices. They control important
characteristics such as: session timers, SIP header customization, SIP timers, MIME payloads, and option tags.
The default SIP profile used for these tests is shown in the figure below.
Media Profiles allow you to specify the individual voice codecs and their associated settings for inclusion in a
Media List. Different codecs provide varying levels of compression allowing one to reduce bandwidth
requirements at the expense of voice quality.
The Media Profile used for these tests is shown in the figure below.
Signaling groups allow telephony channels to be grouped together for the purposes of routing and shared
configuration. They are the entity to which calls are routed, as well as the location from whichCall Routesare
selected. They are also the location from which Tone Tables and Action Sets are selected. In the case of SIP,
they specify protocol settings and link to server, media and mapping tables.
SIP Server Tables contain information about the SIP devices connected to the Sonus SBC 1000/2000. They, in
essence, emulate a traditional ‘SIP trunk group’. The entries in the tables provide information about the IP
Addresses, ports, and protocols used to communicate with each server. The Table Entries also contain links to
counters that are useful for troubleshooting.
Call Routing allows calls to be carried between signaling groups, thus allowing calls to be carried between ports,
and between protocols (like ISDN to SIP). Routes are defined by Call Routing Tables, which allow for flexible
configuration of which calls are carried, and how they are translated. These tables are one of the central
connection points of the system, linking Transformation Tables, Message translations, Cause Code Reroute,
Tables, Media Listsand the three types of Signaling Groups (ISDN, SIP and CAS).
Transformation Tables facilitate the conversion of names, numbers and other fields when routing a call. They
can, for example, convert a public PSTN number into a private extension number, or into a SIP address (URI).
Every entry in a Call Routing Table requires a Transformation Table, and they are selected from there. In
addition, Transformation tables are configurable as a reusable pool that Action Sets can reference.
Figure 3.24 Transformation Table to match US National
Figure 3.25 Transformation Table to match US National
This section assumes that the Lync Server components have been installed along with Lync users. The user
should be familiar with Lync Server Topology Builder, Lync Server Control Panel and Lync Server management
Shell. This section does not cover the basic installation of Lync Server 2013.
4.1 Lync 2013 Configuration Settings
Addition of the SBC to the Lync Server.
The Lync Server topology needs to be modified by adding the SBC as a Gateway device. The Gateway device is
the interface to the Verizon SIP Trunk.
1. Open Lync Server Topology builder.
2. Load the current topology.
3. Expand the topology.
4. Right click the PSTN Gateways link in the left hand pane.
5. Select “New IP/PSTN Gateway…” from the menu as shown and follow thru with the process.
Required settings for the SBC and Microsoft Lync 2013 product depend on the type of call scenario.
5.1 Initial Setup for All Calls
Calling number manipulation
Transformation tables were required for the purpose of mapping preconfigured Lync 2013 user extensions to
established Windstream SIP Trunk DIDs. This is not expected to be a requirement for deployment scenarios.
Called number
Normal calling pattern was to dial all digits in E.164 format for both national and international calls. Other dialing
patterns tested include Emergency calls.
5.2 Initiating Transfers with REFER
Call transfer via REFER method
Microsoft Lync Server 2013 needs additional configuration in order to enable SIP REFER Method. Refer support
needs to be set to Enable sending refer to gateway under Trunk Configuration profile assigned to the appropriate
SBC trunk.