Sentinel SBCs help enterprises and operators encrypt voice, hide topology, block abusive peers and secure POTS-replacement and analog endpoints behind a controlled SIP boundary.

Montreal, Canada November 12, 2026 –(PR.com)– As organizations migrate copper lines, elevator and alarm circuits, ATAs, intercoms and other SIP devices onto IP networks, attackers are already probing those edges. Global telecom fraud losses hit an estimated $38.95 billion in 2023, according to the Communications Fraud Control Association (CFCA), and $41.82 billion by 2025. Nokia’s Threat Intelligence Report found DDoS attacks on many telecom networks jumped from one or two daily to well over 100 daily, fueled in part by insecure IoT devices. M5 Technologies says the voice edge must be treated as critical infrastructure and points to its Mediatrix Sentinel SBC portfolio as the control point.

The problem

VoIP endpoints, POTS-replacement gateways, elevator and fire-alarm lines, door intercoms and similar IoT-adjacent voice devices often sit on flat networks. Palo Alto Networks’ 2025 Device Security Threat Report found 32.5% of devices in corporate networks operate outside IT control and 77.74% of networks show poor segmentation. On the voice plane, that enables SIP scanning, toll fraud, eavesdropping on unencrypted RTP, DoS floods and ransomware pivots from overlooked phones or gateways.

“Copper retirement and cloud calling are pushing mission-critical analog and SIP devices onto the internet-facing edge faster than teams can inventory them,” said Roberto Roman, Product Line Manager at M5 Technologies. “If that edge is open to scanners and fraudulent calls, the cost is stolen minutes, disrupted operations and a path into the network. Sentinel puts a policy-enforced SIP boundary in front of that risk.”

The solution: Sentinel SBC

M5’s Sentinel line, which includes virtual Sentinel CS and appliances such as Sentinel 100 and Sentinel 400: secures SIP networks without rip-and-replace. M5 documentation and the Sentinel CS data sheet map these capabilities to the threats:

– Topology hiding: substitutes internal IPs and identifiers with aliases to protect private network topology.
– SIP over TLS and SRTP: encrypts signaling and media (AES-128, SDES); converts UDP/TCP to TLS and RTP to SRTP at the boundary.
– DoS and abusive-peer protection: automatically blacklists peers connecting at abnormal frequency; firewalls support rate limits and blacklisting.
– Call admission and access control: per-trunk CAC limits call volume, bandwidth and concurrent calls; role-based management with brute-force login protection.
– Microsoft Teams Direct Routing: Mediatrix Sentinel Series listed for Teams Direct Routing with specified DGW firmware.
– Analog / IoT-style endpoints: with Mediatrix gateways and Audiotrix ATAs, keeps elevators, alarms and fax on a validated SIP path behind the same security model.

“For more than three decades we have built carrier-grade voice technology where a compromised call path is not an option,” said Jerome Lagasse, President and Chairman, M5 Technologies. “Sentinel encrypts what must stay private, hides what attackers should never see, and keeps critical analog and SIP devices under operational control.”

Industries

Financial institutions, government and defense, energy, airports, healthcare, public safety and telecom operators depend on trustworthy voice and must modernize POTS/IoT voice without leaving SIP trunks unprotected.

Call to action

Organizations concerned about unsecured SIP, VoIP or IoT voice exposure are invited to request a free security assessment from M5 Technologies, along with a demonstration and architecture discussion covering SIP trunk security, Microsoft Teams Direct Routing and POTS migration. Visit www.m5technologies.com or write to sales@m5technologies.com.

About M5 Technologies
M5 Technologies, formerly Media5 Corporation, is a Canadian developer of secure real-time communications technologies. Since 1992, it has engineered Sentinel SBCs, Mediatrix and Audiotrix gateways, DGW software and M5T embedded voice technologies from Sherbrooke, Quebec. The M5 Technologies brand was adopted in 2021. The company serves operators, enterprises, governments, OEMs and integrators in more than 100 countries.

Contact Information:
M5 Technologies
Roberto Roman
819-829-8749
Contact via Email
www.m5technologies.com

Read the full story here: https://www.pr.com/press-release/984155

Press Release Distributed by PR.com

Media gallery

About The Author
M5 Technologies