Global PSTN.

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

Key Features

Cloud Voice Hub Certified Integrations

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

Single source, certified provider and PSTN management

Multi-platform on-net coordinated calling

CallTower Cloud SBCs eliminate need for customer SBCs

Zero-Outage, Globally Redundant Enterprise Service

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

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.

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

Zoom Phone

CallTower’s Zoom phone empowers companies to make their #1 asset, people, connected, productive and happy by keeping information flowing across teams, time zones and projects, and giving team members the flexibility to work together from anywhere.

Modern Phone Solution
Full-featured Cloud PBX Domestic & International PSTN, Seamless workflow with Zoom Meetings

Centralized Management
Single point of administration, call detail reporting, analytics & monitoring

Secure & Reliable
QoS delivered by an adaptive rate codec, End-to-end encryption (beta), globally distributed datacenters, secure HD voice

Robust Hardware Ecosystem
Broad set of hardware options from handsets to analog devices and infrastructure.

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 and the list changes frequently. Please contact your CallTower Representative for more detailed information and to verify service availability.

Clear Filters

Filters:

Local numbers

PSTN Replacement

Number Portability

Emergency Services

Toll-Free

MS Teams OC

Zoom

Webex

Compare	Country	Local Numbers	PSTN Replacement	Number Portability	Emergency Services	Toll-Free Free Phone, ITSF

Compare	Country	Local Numbers	PSTN Replacement	Number Portability	Emergency Services	Toll-Free Free Phone, ITSF
	Albania
	Algeria
	Angola
	Argentina
	Australia
	Austria
	Bahrain
	Belgium
	Bosnia
	Brazil
	Bulgaria
	Canada
	Chile
	China
	Colombia				Restricted
	Costa Rica
	Croatia
	Cyprus
	Czech Republic
	Denmark
	Dominican Republic
	Egypt
	El Salvador			Restricted	Restricted
	Estonia
	Finland
	France
	Georgia
	Germany
	Greece
	Hong Kong
	Hungary
	Iceland
	India	Yes - Inbound Only
	Indonesia	Coming Soon	Coming Soon		Coming Soon
	Ireland
	Israel
	Italy
	Japan	Restricted
	Kenya
	Latvia
	Lithuania
	Luxembourg
	Malaysia
	Malta
	Mexico
	Netherlands
	New Zealand
	Nigeria
	Norway
	Panama
	Peru			Restricted
	Philippines	Coming Soon	Coming Soon		Coming Soon
	Poland
	Portugal
	Puerto Rico
	Romania
	Saudi Arabia
	Serbia
	Singapore
	Slovakia
	Slovenia
	South Africa
	South Korea
	Spain
	Sweden
	Switzerland
	Taiwan	Coming Soon	Coming Soon		Coming Soon
	Thailand
	Turkey
	United Arab Emirates
	United Kingdom
	United States
	Vietnam

*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

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.

A revolutionary tool enabling users to easily personalize and control their CallTower services

CallTower enables our Customers to manage rapidly changing technologies through Connect – a user-friendly portal, created and developed in-house. This proprietary system ensures our customers can administer services without expertise in any one technology or hiring outside consultants to manage their UC solutions.