Integrating ADTRAN eSBC and NEC SV8100
Overview
6AOSSG0027-42A
Copyright © 2015 ADTRAN, Inc.
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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.
Service
Provider
Public Network
Local Network
SIP
SIP
ADTRAN eSBC
IP PBX
Figure 1. ADTRAN eSBC in the Network
Interoperability
The network topology shown in
was used for interoperability verification between the
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
register locally to the NEC SV8100. Dial plan configuration routes external calls through the SIP trunk to
the ADTRAN eSBC gateway.
