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Discover a comprehensive Solutions Center hub with resources, documentation, and expert guidance for all your business communication needs.

Access our dedicated customer service team around the clock, every day of the year. Get immediate assistance when you need it most.

Stay informed with real-time service updates, maintenance alerts, and important system notifications to keep your business running smoothly.

Monitor live system performance updates and network health metrics to ensure optimal communication service delivery across all platforms.

Technical support escalation for critical issues

Project implementation and deployment issues

Sales inquiries and contract negotiations

Billing disputes and account management

Strategic account growth and optimization

There is no better relationship in the industry than ones CallTower has with its partners. Here are just a few things that make working with us truly awesome.

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At CallTower, we consider our channel partners as family, valuing successful relationships through excellent support and financial rewards.

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Discover Are benefits of our Agency Partner Program for your business. Unlock revenue streams, scalable growth, and extensive support.

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CallTower's MSP Partner Program empowers service providers by simplifying taxation and enhancing efficiency through tools including the GTx self-service platform.

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SIP Trunking for the Enterprise

Certified Solutions for Local-to-Global Voice Applications


Overview

Enterprises with premise-based IP PBX telephony and Unified Communications (UC) solutions deploy SIP trunking to achieve scalability, flexibility, disaster recovery, and cost savings.

Key Benefits of SIP Trunking:

  • Replaces multiple vendors and legacy voice technologies.
  • Provides scalability, flexibility, and disaster recovery.
  • Reduces costs with IP communications.

CallTower’s SIP Trunking Features:

  • Standard trunk features with reliability and redundancy via a multi-carrier MPLS network.
  • Business continuity and disaster recovery with powerful call management features.
  • Fully managed service via CallTower’s MPLS network, third-party MPLS, or public Internet.
  • Enhanced features like enterprise-wide calling plans, QoS management, and worldwide local numbers.

Features

  1. Global Local Coverage and Compliance:
    • Local DID numbers and voice services in over 70+ countries.
    • Compliant in-country dial plans for seamless user experience.
  2. Complete Service Features:
    • Local, long distance, on-net, toll-free, directory assistance, caller ID, directory listing, and 911/E911 services.
  3. Network Flexibility:
    • Options for capacity, geographic diversity, and redundancy.
    • Service delivery over new or existing Internet, CallTower MPLS, or other MPLS networks.
  4. Web-Based Service Management:
    • Real-time call detail, utilisation reports, and ticket tracking.

Benefits

  • Reduced Costs: Consolidate local lines and trunks, reduce hardware and trunk costs, and eliminate multiple vendors.
  • Improved Continuity: Avoid outages with network and geographic redundancy and contingency routing.
  • Investment Protection: Reuse legacy PBX trunk cards or use IP-PBX native SIP trunk connectivity.
  • Improved Scalability: Add capacity for growth or new locations seamlessly.
  • Single Vendor Solution: Simplify global voice and network services with one provider.

Certified Integration

CallTower supports standards-based solutions and ensures interoperability with leading IP-PBX manufacturers for rapid deployment, reduced costs, and simplified administration.


Legacy PBX Integration

What if your phone system is not SIP-capable?
CallTower can connect traditional phone systems using copper lines or ISDN PRI to SIP Trunking with an Integrated Access Device.


Global Availability

CallTower offers:

  • Local numbers (DID/DDI), portability (LNP), and toll-free services in over 100 countries and 8,000 cities worldwide.
  • Consolidated services, reduced costs, and simplified expansion with a single-vendor solution.
SIP Trunking for the Enterprise
SIP Trunking for the Enterprise

SIP Trunking for the Enterprise