Product specifications

Dialogic® BorderNet™ 4000 SBC Product Description Document

Peer Network Load Balancing—Outgoing Sessions

The BorderNet 4000 SBC supports load balancing for outbound sessions to peer networks as

follows:

• The Fully Qualified Domain Name (FQDN) can be assigned multiple IP addresses

within a single subnet, with a maximum of 24 IP addresses per FQDN.

• Priorities and weights can be configured for the group of IP addresses associated

with the FQDN.

External DNS Support

In addition to the local DNS capability described above, the BorderNet 4000 SBC supports

the capability to query external DNS severs for URI resolution. The supported DNS queries

include DNS SRV, DNS NAPTR and DNS A record lookups. The BorderNet 4000 SBC DNS

implementation is standards-based and IPv6-compatible. The supported standards include

RFC 3263, RFC 2782, RFC 291, and RFC 3596. External DNS is useful for call routing,

address resolution, and supporting remote peer redundancy.

External Route Server (SIP Redirect Server)

Interconnection to an external Route Server is available. With this feature, Operators can

configure the BorderNet 4000 SBC to consult an external routing engine via the SIP INV/3xx

method to receive call routing instructions in the form of route lists. To support this feature,

the BorderNet 4000 SBC WebUI enables the modification of SIP Profiler entries and

parameters to provide access and route traffic to the external Route Server. The BorderNet

4000 SBC also supports routing using trunk group parameters.

Access Features

The BorderNet 4000 SBC provides Access features for residential VoIP, Unified

Communications, and enterprise services. Access security features include:

• Access security via DoS, DDoS Protection, and topology hiding

• Registration caching