Is Melo Technology down?

Melo Technology is actively investigating reports of intermittent calling issues affecting some customers across our voice services. Reported symptoms include: Outbound Calls: Delays when initiating or connecting calls, as well as instances where calls connect but no audio is heard. Inbound Calls: Calls appearing to connect but resulting in silence or an absence of audio. Our technical team is treating this matter as a high-priority service incident. We have opened an urgent support ticket with our underlying telecommunications carrier and are actively working with them to identify the root cause and resolve the disruption as quickly as possible. Investigations remain ongoing, and we are closely monitoring service performance to determine the scope and impact of the issue. We recognize the critical importance of reliable telephone communications to your business and understand the disruption these issues may cause. We will provide further updates through our service status communications as soon as additional verified information becomes available. We sincerely apologize for the inconvenience and appreciate your patience as we work toward a resolution.

Service Status Update – Inbound & Outbound Calling We are currently routing outbound calls through our secondary carrier, and outgoing calls are now completing successfully. For inbound calling, we continue to investigate reports of silence and intermittent one-way audio when calls connect. An urgent support ticket remains open with our underlying carrier, and we expect a further update shortly. Our technical team remains actively engaged in resolving this issue. We apologize for the disruption and will provide additional updates as soon as more information becomes available.

Service Status Update – Incoming Calling Issues Outgoing calls are no longer impacted and are completing successfully. The issue is currently isolated to incoming calls to customer DIDs, where some callers may experience silence or intermittent one-way audio. Our technical team continues to actively monitor the situation and remains in close communication with our underlying carrier as we await further updates. We apologize for the ongoing disruption and will provide additional information as soon as it becomes available.

Service Status Update – Incoming Calling Issues We continue to experience intermittent issues affecting incoming calls to customer DIDs. Outgoing calling remains fully operational and unaffected. The inbound calling issue remains unresolved, and our underlying carrier has not yet provided an estimated time for resolution. Our technical team is actively monitoring the situation and persistently following up with the carrier for updates and progress toward a resolution. We understand the urgency of this disruption and will notify customers immediately upon receiving any new information. We sincerely apologize for the continued inconvenience and appreciate your patience.

Service Status Update – Incoming Calling Issues (IDENTIFIED) Our underlying carrier, Comwave, has now confirmed that they are experiencing a service outage affecting their network. The cause of the outage has not yet been identified. Comwave has advised that an official service advisory will be issued to service providers shortly. We are awaiting this communication to better understand the scope of the disruption and any anticipated resolution timeline. Outgoing calling remains fully operational, while some incoming calls to customer DIDs continue to be impacted. We remain actively engaged with Comwave and will provide further updates as soon as additional information becomes available. We sincerely apologize for the continued disruption and appreciate your patience.

Service Status Update – Comwave Carrier Network Outage We have received official confirmation from our underlying carrier, Comwave, that they are experiencing a network-wide service outage affecting both inbound and outbound calling. While Comwave has indicated that both call directions may be impacted, Melo Technology has successfully redirected outbound calling through our secondary telecommunications provider. As a result, outgoing calls are completing successfully. Unfortunately, inbound calls cannot be redirected through the same failover process, and some customers continue to experience incoming call failures, silence, or one-way audio. Comwave's Operations and Voice Engineering teams are actively investigating the outage. No estimated time for resolution has been provided. We have moved this incident to Monitoring, as the issue originates within Comwave's network and is not related to a failure within Melo Technology's infrastructure. We remain in close communication with Comwave and will provide further updates immediately upon receiving new information. We sincerely apologize for the ongoing disruption and appreciate your patience.

Service Status Update – Comwave Carrier Network Outage Status: Monitoring – Carrier Outage Ongoing We have received a further technical update from our underlying carrier, Comwave, regarding the ongoing service disruption. Comwave has identified that one of its four Session Border Controllers (SBCs), which manage telephone call connections, is experiencing failures. Their engineering team has attempted to redirect traffic to alternate equipment; however, the issue persists. Comwave has now escalated the incident to its equipment vendor’s emergency support team and is working to engage a product specialist for further investigation and resolution. Melo Technology’s outgoing calls continue to complete successfully through our secondary carrier. Incoming calls remain impacted, and we are awaiting a resolution from Comwave. No estimated time for resolution has been provided. We continue to monitor the situation closely and will communicate further updates as soon as they become available. We sincerely apologize for the continued disruption and appreciate your patience.

Service Status Update – Comwave Network Outage Status: Monitoring – Carrier Outage Ongoing Unfortunately, we have not yet received a further update from Comwave regarding the ongoing Session Border Controller (SBC) outage affecting incoming calls. This is a major carrier-level service disruption impacting Comwave’s commercial customers and service providers, including Melo Technology. Unlike outgoing calls, which we have successfully redirected through our secondary carrier, there is no technical failover option available for incoming calls, as the issue originates within Comwave’s network. At this time, Comwave has not provided any further progress updates or an estimated time for resolution. We fully recognize the seriousness of this outage and the significant impact it is having on our customers’ business operations. Our team continues to actively pursue updates from Comwave and will communicate any new information immediately upon receiving it. We sincerely apologize for the ongoing disruption to your business and appreciate your continued patience and understanding.

Service Status Update – Comwave Network Outage Status: Degraded Performance – Monitoring Ongoing We have not yet received an official update from Comwave regarding the ongoing carrier network outage. However, we are beginning to receive reports that some previously impacted incoming calls are now completing successfully. While this is an encouraging development, we have not received confirmation that the underlying issue has been resolved. We are updating the service status to Partial outage as our technical team continues to monitor and measure call completion rates and overall service stability. Outgoing calling remains operational through our secondary carrier. We will provide further updates as soon as additional information or official confirmation becomes available from Comwave. We appreciate your continued patience and sincerely apologize for the disruption.

Service Status Update – Comwave Network Outage Status: Degraded Performance – Services Largely Restored We have received an official update from our underlying carrier, Comwave, confirming that their engineering team has identified the probable cause of today’s service disruption. Comwave reports that services should now be functioning normally, although occasional intermittent calling issues may still occur while they work toward a permanent resolution. Their investigation suggests the outage was likely caused by a DDoS mitigation block, rather than the Session Border Controller (SBC) equipment initially suspected. While overall service availability appears to have been restored, Comwave is continuing its investigation and implementing a permanent fix to ensure long-term stability. Melo Technology will maintain the incident status as Degraded Performance while we continue monitoring incoming call completion and service reliability. We will provide further updates once Comwave confirms a permanent resolution. We sincerely apologize for today’s disruption and appreciate your patience and understanding.

Service Status Update – Comwave Network Outage Status: Resolved We are pleased to report that our underlying carrier, Comwave, has officially confirmed that today’s voice service outage has been resolved. Following remediation efforts, Comwave has completed testing and confirmed that calls are now completing successfully without audio issues or failures. We encourage all customers to test their incoming and outgoing calling services to confirm normal operation. Should you experience any further issues, please contact Melo Technology Support with recent call examples, including the date, time, calling number, called number, and a description of the issue. We will continue monitoring service stability following this resolution. We sincerely apologize for today’s disruption and appreciate your patience and understanding throughout this incident.

We have been notified by our software vendor of newly disclosed critical security vulnerabilities affecting underlying software components used by our VoIP and DNS management infrastructure. We want to reassure our customers that, at this time, we have no evidence or reason to believe that our systems have been compromised or that we have been targeted or impacted by malicious actors. As a proactive security measure, our technical team is preparing to deploy emergency security updates immediately upon their release by our software vendor this morning, October 21, 2026. Maintenance Impact: We do not anticipate any widespread service outages or significant disruptions. However, customers may experience brief, intermittent interruptions to telephone services or access to management portals while updates are applied. Maintenance Window: Emergency maintenance will commence immediately upon availability of the security updates this morning. The exact start time and duration will depend on the vendor's release schedule. Protecting the security, integrity, and reliability of our infrastructure remains our highest priority. Our technical team will closely monitor all systems throughout the maintenance process to minimize any potential service impact. We appreciate your understanding as we take these important preventative measures to maintain a secure and reliable service environment.

Security upgrade is in progress. Some services will be temporarily impacted. Update to come shortly.

The required security maintenance has been successfully completed, and all systems are fully operational. If you experience any issues with your phone or device following the maintenance, please try restarting it first, as this will often resolve any temporary connectivity issues. If the issue persists after restarting, please contact our support team for assistance. Thank you for your patience and understanding as we continue working to maintain the security, reliability, and performance of our services.

This incident has been resolved.

We have received reports and can confirm that **Melo SIP is currently experiencing an issue affecting outbound dialing following a recent system update**. Our technical team is actively investigating the issue and working to restore normal service as quickly as possible. We will provide further updates as additional information becomes available.

MeloSIP Click2Call Workaround Available We have identified a temporary workaround for users who need to make calls using MeloSIP Click2Call while our team works on an update. In the MeloSIP Chrome extension: - Enable “Dynamic Caller ID.” - Enter your business phone number in the “Default Caller ID” field. This should restore Click2Call functionality until the MeloSIP application update is released. Alternatively, users can continue making calls by manually dialling numbers using the traditional dial method. For clarification: This issue is limited specifically to MeloSIP Click2Call functionality. Regular manual dialling is not affected. Our team is actively working on the MeloSIP update and will provide another notice once the fix is available.

We have released an updated version of MeloSIP Click2Call — version 11.2.6 — which includes the fix for the current Click2Call issue. The update has been submitted to the **Google Chrome Web Store** and is currently awaiting Google's approval. Unfortunately, the timing of that approval is outside of our control. Once Google approves and publishes version 11.2.6, users should only need to update the MeloSIP Click2Call Chrome extension to restore normal service. We are actively monitoring the Chrome Web Store for approval and will update this ticket as soon as the new version becomes publicly available.

The latest version of MeloSIP Click2Call, version 11.2.6, is now available in the Google Chrome Web Store and is ready to be updated by our users. If you temporarily enabled Dynamic Caller ID as part of the earlier workaround, please disable it after updating. Once version 11.2.6 has been installed, MeloSIP Click2Call service should be fully restored to normal operation. If you experience any difficulty updating the extension or require assistance, please contact Melo Technology Technical Support: Phone: 1-888-635-6835, Option 3 From your Melo phone: Dial 611 Email: [[email protected]](mailto:[email protected]) Our team will be glad to assist you. Thank you for your patience while we worked to resolve this issue. This incident is now resolved and the ticket is being closed.

Currently investigating an issue affecting outbound calls for some users. We’re actively working to identify the cause and restore normal calling as quickly as possible.

We are actively restarting one of our primary node servers. Services will be offline momentarily.

We are continuing our investigation and have activated our engineers to investigate the dialing issue with urgency.

Services are restored. We are continuing our investigation and monitoring closely.

This incident has been resolved.

RFO: Root Cause & Service Restoration Update Voice Service Interruption — August 12, 2026 Melo Technology takes the reliability and security of our communications infrastructure exceptionally seriously. We are providing this update to give our clients a clear and transparent account of the service disruption experienced this morning, while appropriately protecting operational and security-sensitive details. Executive Summary At approximately 8:03 a.m. Toronto TIme, Melo Technology's infrastructure monitoring systems began generating a series of abnormal alerts affecting our primary voice infrastructure. Our engineering team immediately began investigating. Shortly afterward, we identified intermittent failures affecting the completion of some outbound calls. We also began receiving reports from clients who were unable to complete certain calls. Our initial investigation showed that some calls were being rejected by upstream telecommunications carriers. We immediately engaged our carrier partners and software engineering team to determine the source of the failures. Through that joint investigation, we determined that the underlying issue originated within traffic reaching our infrastructure. Melo Technology was the target of a distributed denial-of-service \(DDoS\) attack. The attack generated an abnormally high volume of traffic against portions of our telecommunications infrastructure. As a result of that traffic, one of our upstream carriers automatically implemented protective rate-limiting measures. Those protections caused some legitimate calls to be temporarily rejected or prevented from completing. Our engineers, carrier partners and software team worked together to identify the traffic pattern, isolate the source of the disruption and implement mitigation measures. Service has now been restored. Service was fully restored at 9:10 a.m. EDT. Client Impact The impact of this incident was limited to service availability. During the affected period, some clients experienced intermittent difficulty completing outbound telephone calls. Calls that were successfully established continued to operate normally. There was no compromise of Melo Technology's systems or client environments as part of this incident. Our investigation found: No evidence of unauthorized access to client data No evidence that customer information was accessed, altered or disclosed No evidence of call interception or access to call content No compromise of credentials or client accounts No intrusion into our systems or network No ransomware, malware or other system compromise This was a denial-of-service event, not a data breach or system intrusion. The objective and effect of the attack were to disrupt the availability of services by overwhelming infrastructure with traffic. Apart from the temporary inability to complete some calls, the confidentiality and integrity of our systems, client information and communications remained protected. Root Cause The root cause was a deliberate volume-based attack directed toward telecommunications infrastructure operated by Melo Technology. The resulting abnormal traffic volume triggered protective measures within portions of the carrier network, including rate limiting. While those safeguards operated as designed to protect telecommunications infrastructure from excessive traffic, they also temporarily affected legitimate outbound call traffic. Once our teams correlated the carrier behaviour with the abnormal traffic reaching our infrastructure, we were able to identify the attack and implement appropriate controls to mitigate it. For security reasons, we will not publish specific details regarding the attack vector, affected interfaces, network architecture, firewall controls or mitigation techniques used. Providing that level of detail could unnecessarily expose information that may assist future attackers. Response and Remediation Melo Technology's infrastructure monitoring detected the abnormal conditions immediately, allowing our team to begin investigating at 8:03 a.m. Throughout the incident, our engineering team worked directly with our telecommunications carriers and software partners to trace the call failures and distinguish legitimate carrier issues from the underlying traffic event. Once the source was identified, mitigation measures were implemented to isolate the malicious traffic and restore normal telecommunications service. We have also implemented additional protective controls as part of the response and are continuing to review the incident for opportunities to further strengthen our infrastructure. Security Review We recognize that any incident involving the words DDoS attack can understandably raise questions about the security of customer information. We want to be clear: Melo Technology was not hacked. A DDoS attack is fundamentally different from an intrusion or data breach. In this case, an external party attempted to disrupt service by generating excessive traffic. Our investigation has found no indication that the attacker obtained access to our systems, customer information, communications or internal resources. The incident affected the availability of a portion of our voice service for a brief period. It did not compromise the confidentiality or integrity of the information entrusted to us. Moving Forward Although service has been fully restored, our work does not end with restoration. Melo Technology is conducting a complete post-incident review alongside our technology and carrier partners. We are reviewing traffic controls, carrier protections, monitoring thresholds and additional defensive measures designed to further reduce the impact of similar attacks in the future. Security incidents and service interruptions are treated with the highest level of seriousness within our organization. We design our infrastructure with multiple layers of monitoring and protection specifically because telecommunications systems are critical to the businesses that depend on them. This morning's incident demonstrated the importance of those systems: our monitoring detected abnormal behaviour immediately, our engineers responded at once, and our carrier and software partners worked with us to identify and remediate the issue. We sincerely appreciate the patience of clients who experienced difficulty completing calls during the incident. All services are currently operational, and we continue to actively monitor our infrastructure. Thank you for your trust in Melo Technology. Melo Technology