Arcstar SIP Trunking

Simplify your global external communications on the cloud


Placing international calls from Arcstar Universal One Sites to PSTN.

Incoming calls to DID Number from PSTN to Arcstar Universal One Sites.

Arcstar SIP Trunking has two types.

On-premise CPE Type Arcstar SIP Trunking with voice gateway to the existing PBX/IP-PBX
UCaaS Type Arcstar SIP Trunking bundles with Arcstar UCaaS

Features & Benefits


Arcstar SIP Trunking Service, an external voice communication on NTT Communications(NTT Com) VPN service, reduces costs, integrating voice and data on a single network.
With competitive calling charges among players, it also supports emergency calling and number portability.*
This centralized service frees our customers of dealing with equipment on each site. Through our portal, customers can check and download call detailed data for their effective cost management.

*The functions provided by Arcstar SIP Trunking vary by region.

High quality and high availability

NTT Communications (NTT Com) was named "Best Global Wholesale Carrier (data)" at the Capacity Global Carrier Awards 2014. NTT Com also won Telecom Asia's "Best International Wholesale Carrier" Award. The reliable call quality offered through Arcstar SIP Trunking builds on industry-leading NTT Communications network services.

A next generation communications platform

Coordination of NTT Com's Unified Communications as a Service (Arcstar UCaaS), and Arcstar SIP Trunking provides a comprehensive communication and collaboration platform on the cloud. The combination of the two services supports internal/external voice communications and brings new capabilities such as conferencing, video, instant messaging and presence functions.

Cost Simulation

(Example) $=USD

Cost Simulation

[Simulation Assumptions]
•Number of calls per hour: 26•Average call time: 5 minutes•Business days per month: 20
•Call source: Singapore•Call destination: India, Malaysia, China, Indonesia, Thailand

Cost Simulation

[Simulation Assumptions]
•Number of calls per hour: 610•Average call time: 5 minutes•Business days per month: 20
•Call source: USA•Call destination: Australia, Mexico, Canada, UK, China, Japan, Germany, France, Philippines.


Please contact us for a price quotation and further details.

Area of Service

For free consultation, pricing estimate and IT needs assessment to optimize your business infrastructure, please contact us

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