Global PSTN.
Give your communications platforms a voice with purpose-built Cloud Collaboration
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PURPOSE-BUILT CLOUD COLLABORATION
Cloud collaboration, UC and Contact Center tools have quickly enabled the new remote and distributed worker environment. However, these powerful “internal” communications tools often have limited access to the “outside” PSTN and call routing integration that enable a complete, cost effective enterprise telephony solution.
Cloud Voice Hub, the evolution of CallTower’s award-winning global SIP trunking service, is purpose-built to solve these challenges. Available in over 70 countries, Cloud Voice Hub provides certified, secure cloud SIP PSTN connectivity to all major cloud collaboration, unified communications and contact center services including Cisco (Webex Calling and UCM Cloud), Microsoft Teams (Direct Routing), Genesys, Avaya, Zoom and NICE InContact.
ENTERPRISE BENEFITS:
CallTower Cloud SBCs eliminate need for customer SBCs
KEY FEATURES:
Consolidate local PSTN in the Americas, EMEA and APAC with local DID numbers and number portability in over 70 countries worldwide and fully integrated and certified with major collaboration providers including Cisco, Microsoft, Genesys, Avaya, Zoom and NICE InContact.
Cloud Voice Hub provides complete local PSTN capabilities including local, long distance, on-net calling, toll-free, directory assistance, caller ID and emergency services.
Whether you have a single platform requiring certified cloud PSTN or multiple platforms requiring certified cloud PSTN and on-net calling capability, CallTower’s Cloud Voice Hub has you covered. CallTower integrates disparate platforms with certified, cloud-based SBC on-net call routing which greatly simplifies management, reduces cost and enables more flexible migration strategies.
CallTower has certified its global PSTN infrastructure and networks with major collaboration providers including Cisco (Webex Calling and UCM Cloud), Microsoft Teams Direct Routing, Genesys, Avaya, Zoom and NICE InContact. Cloud Voice Hub combines these world-class collaboration tools with our world-class SIP PSTN services to provide a complete communications solution to meet the most challenging customer requirements.
CLOUD VOICE HUB CERTIFIED INTEGRATIONS:
MICROSOFT TEAMS
Enable full native PSTN voice capability to over 70 countries for Microsoft Teams as an alternative to Microsoft calling plans and without the need for premise hardware.
Direct Routing utilizes CallTower’s Microsoft Certified Session Border Controllers (SBCs) to deliver natively-connected, secure cloud voice in over 70 countries. Connection from Microsoft Teams to our network is via a secure IP connection and is delivered as an end-to-end service with quality, geo-redundancy and high-availability.
CLOUD CONNECT FOR WEBEX CALLING
As a Cisco Certified Calling Provider, CallTower delivers Cloud Connected for Webex Calling option, customers can use CallTower for their PSTN access. Through CCPP, Cisco seamlessly interconnects with CallTower to enable Webex Calling customers to have economical and reliable global PSTN in the cloud – without the need for any premises-based SBC/gateway.
- Certified Webex Calling PSTN coverage in over 70 countries covering Americas, EMEA and APAC.
- Seamless management via Cisco Control Hub.
- Dedicated, redundant global infrastructure for secure, QoS-based calling.
- Consolidation of multiple country/market PSTN into centralized billing and management.
- Global DID/DDI phone number availability.
- In-country Call Termination with CLID and Special-Digits Localization.
- Emergency Services Support
CISCO UCM CLOUD PSTN
CallTower is Cisco’s only certified global Cloud Connected PSTN Provider (CCPP) offering SIP Trunk services to Cisco UCM Cloud. UCM Cloud is hosted in Cisco’s Webex data centers across the globe and offers the familiar CUCM design flexibility, features and user experience providing an ideal migration path to the cloud for enterprise customers. CallTower integrates its global dedicated, redundant infrastructure natively with Cisco to provide secure, QoS-based PSTN in over 70 countries.
- Certified Webex Calling PSTN coverage in over 70 countries covering Americas, EMEA and APAC.
- Seamless management via CUCM.
- Dedicated, redundant global infrastructure for secure, QoS-based calling.
- Consolidation of multiple country/market PSTN into centralized billing and management.
- Global DID/DDI phone number availability.
- In-country Call Termination with CLID and Special-Digits Localization.
- Emergency services support.
INTERNATIONAL COVERAGE CAPABILITIES –
From single site local deployments to international multisite deployments, CallTower has you covered with service coverage and certified install staff in over 70 countries.
| Albania | Finland | Netherlands | Spain |
| Argentina | France | New Zealand | Sweden |
| Australia | Germany | Norway | Switzerland |
| Austria | Greece | Panama | Taiwan |
| Belgium | Hong Kong | Peru | Thailand |
| Bosnia & Herzegovina | Hungary | Philippines | United Kingdom |
| Brazil | Indonesia | Poland | United States |
| Bulgaria | Ireland | Portugal | Vietnam |
| Cambodia | Israel | Puerto Rico | |
| Canada | Italy | Romania | |
| Chile | Japan | Russian Federation | |
| China | Kazakhstan | Serbia | |
| Colombia | Latvia | Singapore | |
| Croatia | Lithuania | Slovakia | |
| Cyprus | Malaysia | Slovenia | |
| Czech Republic | Mexico | South Africa | |
| Denmark | Myanmar | South Korea |
CallTower Connect simplifies the set-up and management of CallTower services like Cisco & Microsoft Teams – facilitated within one easy to use online or mobile app. The provisioning application is launched by an end-user or company administrator to add or manage CallTower hosted services. The workload of administrators will decrease as users gain access to a simplified panel where changes to Cisco can be made without a call to support.
RELEVANT LINKS –
CallTower’s Global PSTN
3 Simple Steps: CallTower’s Global PSTN