Vanguard Networks Introduces Session Initiation Protocol (SIP)

Vanguard Networks Introduces Session Initiation Protocol (SIP)

August 31, 2007

VOIP Subscribers Can Lower Costs Using Vanguard Routers and
Add SIP Phones

    MANSFIELD, Mass., Aug. 30 /Xinhua-PRNewswire/ --
Vanguard Networks announces new SIP (session initiation
protocol) gateway to allow customers to reap the benefits
of IP Telephony. With the addition of SIP functionality
Vanguard customers who subscribe to VOIP services from an
IP telephony service provider will now be able to save on
monthly charges, while keeping high quality and
reliability. Customers can continue to use existing phones
connected to a Vanguard Gateway router to keep initial
expenses low, and also add SIP phones to lower
administrative costs.

    Vanguard Networks provides voice over IP with SIP, QoS,
Security & Routing in a single platform to:

    -- Allow Internet Telephone Service Providers (ITSP) to
offer single edge 
       device
    -- Provide analog/digital phone to SIP gateway
capabilities
    -- Provide (FXO) PSTN back up to ITSP service
    -- Support SIP IP-Phones
    -- Route IP and non IP data

    Vanguard Networks routers support both SIP and analog
phones, and corporate PBX and key systems, supporting a
full mix of data and telephony services as networks evolve.


    With this announcement, Vanguard Networks routers now
act as a Media Gateway and a Signaling Gateway between
Voice over Frame Relay service and VOIP service. This
powerful feature enhances the abilities of Voice over Frame
Relay customers to migrate to VOIP on their own timeline.
Mixed networks of Voice over Frame Relay sites and Voice
over IP sites can easily interoperate. 

    Download our product introductory kit at
http://www.vanguardnetworks.com/products/solutions/ip_telephony/

    SIP Gateway functionality is available on all Vanguard
Network routers equipped with voice option cards, running
Applications Ware release 7.0 or higher with Advanced Voice
Applications Ware software license. 

    Download our Software Release Information 7.0 at
http://www.vanguardnetworks.com/products/applications_ware_software/

    About Vanguard Networks 

    Headquartered in Mansfield, Mass., Vanguard Networks
offers a portfolio of advanced multi-service protocol
gateway solutions, IP routing products and system support
maintenance services for use in enterprise and government
networks.  Vanguard Networks portfolio of multi-service
access gateways and IP routers feature leading edge support
for telephony over data networks, delivering integrated
telephony gateway function supporting analog/digital phones
and PBX's and leading edge voice packetization compliant
with G.729, G.723, G.711 and supporting H.323 and SIP
signaling. 


    For more information, please contact:

    Urs Bachmann 
    Phone:   [phone]
    Email:   [e-mail]
    Website: http://www.vanguardnetworks.com