Verizon Business has introduced voice-over-Internet Protocol portfolio in Switzerland, making it the eleventh country in Europe to have the company’s business-class VoIP services.

The business-class VoIP portfolio (hosted IP Centrex, IP Trunking and IP Integrated Access) will be available throughout Switzerland, with full two-way voice calling services for national and international calling.

Verizon said that the new VoIP service will enable large and medium-size businesses to completely replace traditional voice calling services in any of the countries where its VoIP services are available.

Leveraging the cloud services model, Verizon can make UC&C software and services available from an externally hosted platform, on a pay-per-user basis, so customers can avoid much of the expenses and complexity of buying and managing their own equipment.

Verizon Business will also introduce a new VoIP product service-level agreement (SLA) throughout Europe in the first half of 2011, which is already available in the US.

The SLA increases the mean opinion score guarantee (a measure of voice quality) to 4.0 and introduces a new four-hour mean-time-to-repair metric.

In addition, the SLA also covers network availability and jitter (data-packet loss that can degrade or delay voice quality), making it one of the industry’s most aggressive VoIP network-quality SLAs.

Further, the company has certified Cisco VoIP and unified communications and collaboration gear to work with Verizon IP Trunking in the US and Europe.

Verizon IP Trunking customers can also use Cisco Unified Border Element, an enterprise-focused session border controller to help control communications costs, improve network interconnections and enable rich collaboration applications.