Overview; Interoperability - ADTRAN eSBC Interoperability Manual

Table of Contents

Integrating ADTRAN eSBC and NEC SV8100

Overview

Service providers are increasingly using SIP trunks to provide Voice over IP (VoIP) services to customers.

ADTRAN eSBC products provide features that normalize the SIP signaling and media between the

customer's PBX and the service provider's SBC and softswitch server. In this application, the ADTRAN

eSBC gateway operates as a SIP back-to-back user agent (B2BUA). One Ethernet interface on the

ADTRAN eSBC provides the wide area network (WAN) connection to the service provider network and

terminates the service provider SIP trunk. A second Ethernet interface connects the customer's local area

network (LAN) and provides a SIP trunk connection to the IP PBX for VoIP applications.

illustrates the use of the ADTRAN eSBC in a typical network deployment.

Public Network

Service

Provider

SIP

The network topology shown in

ADTRAN eSBC and the NEC SV8100. The configuration is a typical SIP trunking application, in which

the ADTRAN eSBC gateway Ethernet interface provides the Ethernet WAN connection to the service

provider network. It should be noted that the WAN connection is not limited to Ethernet. A second

Ethernet interface connects to the customer LAN. The NEC SV8100 connects to the customer LAN. Two

SIP trunks are configured on the ADTRAN eSBC gateway: one to the service provider SIP network and

the second to the NEC SV8100. The ADTRAN eSBC gateway operates as a SIP B2BUA, and outbound

and inbound calls to the public switched telephone network (PSTN) are routed through the ADTRAN

eSBC.

The NEC SV8100 supports various phone types, including digital, H.323, and SIP IP phones. The phones

the ADTRAN eSBC gateway.

6AOSSG0027-42A

ADTRAN eSBC

Figure 1. ADTRAN eSBC in the Network

Figure 2 on page 3

was used for interoperability verification between the

Local Network

SIP

IP PBX

Overview

Figure 1

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