SIP Trunking - Business Phones & Office Phone Systems St. Louis, MO | Metropark Communications Inc.

SIP Trunking

MPVEX SIP Trunking Services

Experience… Quality… Value…

Metropark offers a SIP Trunking plan to effectively fit any size business. From small businesses looking for the flexibility and cost savings of VoIP, to mid-sized businesses looking for business continuity, disaster recovery, disaster avoidance, and unlimited calling, Metropark has a plan for your business!


  • Unlimited* Inbound Calling
  • Unlimited* Outbound Calling
  • Metered Inbound Calling per low rate charge
  • Metered Outbound Calling per low rate charge
  • 1x Direct Inward Dialing Number (DID)
  • Fail-Over Automatic Protection Service

All Metropark Voice Exchange Plans have Competitive International Rates, Competitive Inbound Toll Free Calling, and access to web reports for usage and real-time call details.

For businesses wanting to make full use of their installed IP-PBXs and not only communicate over IP within the wide area network, but also outside the enterprise, a SIP trunk provided by Metropark to connect to the traditional PSTN network is the solution. Unlike in traditional telephony, where bundles of physical wires were once delivered from the service provider to a business, a SIP trunk allows a company to replace these traditional fixed PSTN lines with PSTN connectivity via a SIP trunking service provider on the Internet.

SIP trunks can offer significant cost-savings for businesses, eliminating the need for local PSTN gateways, costly ISDN BRIs (Basic Rate Interfaces), or PRIs (Primary Rate Interfaces).


  • Dynamic Usage
  • DID  Direct Inward Dialing
  • DOD Direct Outward Dialing
  • Better use of bandwidth
  • Line Share
  • Redundant designs easily implemented

Top 10 Reasons to Deploy MPVex SIP Trunking

1) Rapid ROI

MPVEX SIP Trunking does not require a significant capital expenditure but immediately begins to reduce costs while also maintaining the features you have with your local PBX.

2) Leverage Ubiquitous Broadband Availability

MPVex SIP Trunks are delivered over IP, and often with compression you can get more call concurrency or call volume over a modern broadband circuit vs old style T1 / PRI telephone services.

3) Enables Fast Geographic Growth

By using networking to combine voice and data, MPVex SIP Trunks can connect distant business locations to expand your company’s geographic voice and data system.

4) Reduced Call Cost

This may be very surprising for you, but MPVex SIP Trunking can dramatically reduce the cost of making and taking calls.

5) Unified Communications

MPVex SIP Trunking provides a gateway to creating an IP-based UC system that brings together voice, data, Instant Messaging, presence, and application sharing

6) Increased Productivity

MPVex SIP Trunking enables improved collaboration of your workforce by creating the ability to seamlessly connect multiple offices and mobile workers.

7) Mobility

MPVex SIP Trunking can help tie together mobile devices and remote workers by enabling a blend of premise and cloud based services.

8) Scalability

Unlike traditional POTs and T1/PRI lines that require planning for peak at all times, MPVex SIP Trunking offers on-demand scalability. You only pay for what you need, and enable excess capacity when and where needed. Best of all, you can plan for peak at the enterprise level, and not just by office location.

9) Reliability

MPVex SIP Trunking is very stable. Rather than being at the mercy of local events such as power or circuit outages, MPVex SIP trunking can automatically be rerouted to other offices, mobile phones, or virtually anywhere based on your business rules.

10) User Experience

MPVex SIP Trunking creates an easy-to-use communications interface for IT managers and the employee users. MPVex SIP Trunking is an efficient and cost effective way for you to scale quickly without big capital expenses.

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note: * “Unlimited” calling is consistent with use by a small to medium sized business, which will include, without limitation: (i) no more than 3,000 combined inbound and outbound minutes per SIP trunk (excluding international or toll free calling); (ii) a maximum of 15 DIDs per SIP trunk; and (iii) a registered valid 911 address.