Global PSTN.

Give your communications platforms a voice with purpose-built Cloud Collaboration

 

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Key-features
Key Features

Integrations

Cloud Voice Hub Certified Integrations

DID-Availability

Global Direct in Dial Availability

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:

Consolidate local PSTN in the Americas, EMEA and APAC

CallTower Cloud SBCs eliminate need for customer SBCs

Single source, certified provider and PSTN management
Zero-Outage, Globally Redundant Enterprise Service
Multi-platform on-net coordinated calling

KEY FEATURES:

Global PSTN Coverage for Collaboration, UC and Contact Centers Platforms

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.

Complete PSTN Service Features

Cloud Voice Hub provides complete local PSTN capabilities including local, long distance, on-net calling, toll-free, directory assistance, caller ID and emergency services.

Multiple Platform Integration and Migration Flexibility

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.

Certified Solutions Ensuring Performance

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

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.

CallTower delivers Operator Connect for Teams and Teams Direct Routing utilizing CallTower’s Microsoft Certified Session Border Controllers (SBCs) to enable natively-connected, secure cloud voice in over 70 countries. The 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.

Cisco Webex

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

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.

GLOBAL DIRECT IN DIAL AVAILABILITY:

More countries added regularly

Clear Filters
Filters:
Compare Country Local
Numbers
PSTN
Replacement
Number
Portability
Emergency
Services
Fax Toll-Free
Free Phone, ITSF
Algeria No
Angola No
Argentina
Australia
Austria
Bahrain
Belgium No
Brazil Yes*Yes*Yes*
Bulgaria No
Chile Yes*No
China No
Colombia Restricted*
Croatia
Cyprus No
Czech Republic
Denmark
Dominican Republic
Egypt No
El Salvador Restricted*Restricted*
Estonia Yes*Yes*
Finland NONo NO
France RestrictedRestrictedRestrictedRestricted
Georgia
Germany
Greece
Hong Kong
HungaryÊ
India Yes* Inbound Only
Indonesia No
Ireland
Israel
Italy
Japan
Kenya No
LatviaÊ
Lithuania
Luxembourg No
Malaysia No
Malta No
Mexico Yes*Yes*Yes* Yes*
Netherlands
New Zealand
Nigeria No
NorwayÊ
Panama
Peru Restricted*
Philippines Yes*
Poland
Portugal No
Romania
Serbia Yes*No
Singapore Yes*
Slovakia
Slovenia
South Africa Yes*Yes*Yes*
South Korea
Spain Restricted*Restricted*Restricted*Restricted*Restricted* Restricted*
Sweden Restricted*Restricted*Restricted*Restricted*Restricted* Restricted*
Switzerland No
Taiwan No Yes*
ThailandÊ Yes*Yes*No
Turkey
United Arab Emirates
United Kingdom
Vietnam No

*Confirm service availability with your CallTower representative. 

PSTN replacement YES means:
Access to in-country only dialable numbers, i.e., Toll-Free/Free-Phone, National numbers, and most shortcodes.
Caller ID (ANI) is guaranteed, and the call is marked safe if the country has RoboCalling/SPAM blocking.
Call enter country on in-country national trunking as usual for competitive local carrier operating in that country.

PSTN replacement NO Means:
Caller ID (ANI) is *NOT* guaranteed and could be marked as SPAM if dialing in-country or blocked.
The call enters the country as an International call, *not* as in-country local national trunks.
No access to in-country only numbers.

CT Cloud Recording
CT CLOUD RECORDING
UC Compliance

More and more, enterprises are adopting Unified Communications (UC) platforms as they evolve toward a more distributed workforce. And CallTower is facilitating this shift by ensuring that the requirements of compliance are met along the way

Enterprise Call Recording

From the largest global financial services firms to SME startups, CallTower protects and supports the world’s businesses with robust and universal enterprise call recording solutions.

Our award-winning CT Coud Recording platform was the very first cloud-native solution, revolutionizing enterprise call recording forever. Cloud-based recording allowed companies to decentralize operations, allowing multiple locations and remote staff to work securely and under the protection of industry-leading compliance at all times.

CallTower Connect

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.

Learn More