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CallTower Network Services

Our one-stop-shop to complete your solution with CallTower network services.

Why choose CallTower for your network services? We provide the service, manage the network upgrades and integrate the technology and applications into your business with around the clock monitoring by our Network Operations Centers. With a robust global network offering redundant connections through leading providers, CallTower can connect to almost any place at any time. We also provide Multi-Protocol Label Switching (MPLS), dedicated lines and global Session Initiated Protocol (SIP) Trunking all with 24x7x365 monitored services to ensure maximum uptime and available dynamic application failover.  


Real-time applications such as voice, video, and collaboration, are increasingly taking up a larger share of network bandwidth by corporations and consumers alike. Software-Defined Wide Area Network provides local and global businesses with enterprise-grade, reliable performance for real-time applications like voice and video. It is also cloud-agnostic, enabling improved performance even when voice applications are hosted in any cloud environment.

Benefits of an SD-WAN deployment:

  • Can be deployed within a week
  • Cloud-agnostic
  • Several solution options
  • Lower cost
  • Global connectivity
  • Improved performance

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Today, many companies need to connect to multiple business locations. The most reliable and secure wide area network service is Multi-Protocol Label Switching (MPLS) network, a privately operated network that carefully controls connection paths between locations. MPLS networks offer:

  • Lower cost
  • Higher performance way to send data
  • Voice or video between locations.
  • Guarantee Quality of Service for Voice Traffic
  • Option for Cisco solution and Skype for Business solution; with CallTower Hosted Voice and MPLS network, we deliver quality and reliable voice service. Monitor and manage complete network 24x7x365

Worldwide SIP Trunking

With the experience and flexibility of CallTower, we can deliver fully-managed SIP Trunking service through multiple MPLS providers, over the public internet or via dedicated circuits. This approach offers the convenience of preserving existing network connections, helps reduce deployment time and provides the efficiency and economic benefits of network convergence. Features include:

  • Local DID numbers and number portability in over 50 countries and 8,000 cities worldwide.
  • Supports multiple PBX solutions, such as: Cisco, Microsoft Skype for Business, Avaya, Shoretel, asterisk, etc.
  • Increase service delivery options such as capacity, geographic diversity and network redundancy with Global SIP Trunking service through managed CallTower dedicated circuits.

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Dynamic Voice Redundancy Solutions

Outages and downtime cost you time and money. You deserve multiple paths to ensure 100% voice uptime.  CallTower’s expanded offering includes a wide range of circuit providers to offer carrier diverse flexibility and peace of mind. Learn more  

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