What is Signalmash?
Signalmash is a communications platform built for teams that need both robust infrastructure and direct, responsive support from real people.
Instead of layered plans and slow ticket systems, we provide straightforward access to experts who help you move faster and improve customer engagement. Enterprise customers collaborate with our engineers through a dedicated Slack workspace.
Our platform connects directly to Tier-1 carriers including AT&T, Verizon, and T-Mobile, and delivers a 94% first-time approval rate for 10DLC registrations.
Capabilities
Messaging
SMS (10DLC, short code, toll-free)
RCS messaging with rich media via API and no-code tools
Voice
SIP trunking, VoIP, inbound and outbound calling
Numbers & Identity
Local, toll-free, and short code numbers
Branded Caller ID (BCID)
Data & Lookup
CNAM (caller ID) data
Carrier and line-type identification (wireline vs. wireless)
Federal DNC status checks
Signalmash brings together carrier-grade performance with a hands-on, partnership-driven support experience.
Pricing
Integrations
Company Facts
Product Details
Product Details
Signalmash Categories and Features
Voice Calling API & SDK Provider
The Signalmash Voice API offers developers the ability to manage calls, including making, receiving, and controlling them. It also allows for bulk number purchases, call recording, and routing to SIP endpoints, while providing STIR/SHAKEN attestation and Branded Caller ID for all outgoing calls. Utilizing direct connections with major Tier-1 US carriers such as AT&T, Verizon, T-Mobile, and Bandwidth, Signalmash presents transparent flat rates for messages and minutes, with carrier charges passed on at cost. Additionally, each customer is provided with a dedicated channel in Slack or Microsoft Teams, complete with named engineers, eliminating the need for a traditional ticketing system.
SMS Marketing Software
Signalmash offers a comprehensive SMS marketing solution that includes registered 10DLC, verified toll-free, and short-code numbers. They take care of the 10DLC brand and campaign registrations on your behalf, manage real-time STOP/HELP opt-out requests, and enforce designated quiet hours. Additionally, Signalmash enhances messaging with RCS rich media and automatic SMS fallback via SimplyRCS. Utilizing direct Tier-1 connections to major US carriers such as AT&T, Verizon, T-Mobile, and Bandwidth, they provide transparent pricing with flat rates per message and minute, passing on carrier fees at cost. Moreover, each client receives a dedicated communication channel on either Slack or Microsoft Teams, complete with assigned engineers, eliminating the need for a ticketing system.
SMS API Provider
The Signalmash SMS API offers a RESTful interface for transmitting and receiving SMS and MMS messages through 10DLC, toll-free, and short-code numbers. It includes features such as delivery receipts, inbound webhooks, automatic opt-out management, and RCS with SMS fallback all accessible via a single endpoint. Signalmash operates on direct Tier-1 connections with major US carriers like AT&T, Verizon, T-Mobile, and Bandwidth. It provides straightforward per-message and per-minute pricing, passing carrier fees directly to customers without markup. Additionally, each client is assigned a dedicated channel on Slack or Microsoft Teams, along with a team of named engineers for support, eliminating the need for a ticketing system.
SIP Trunk Provider
Signalmash offers elastic SIP trunking solutions that seamlessly link your PBX, contact center, or softswitch to the PSTN through secure, encrypted trunks. With a pay-per-minute pricing model, you can enjoy unlimited scaling for concurrent calls, as well as features like E911, CNAM support, and comprehensive STIR/SHAKEN attestation to prevent calls from being marked as Scam Likely. Operating on direct connections with top Tier-1 US carriers such as AT&T, Verizon, T-Mobile, and Bandwidth, Signalmash provides straightforward flat rates for both messages and minutes, with carrier fees transparently passed through at cost. Additionally, each customer is provided with a dedicated Slack or Microsoft Teams channel featuring named engineers, eliminating the need for impersonal ticket queues.
PBX Software
MashPBX, offered by Signalmash, is a hosted PBX solution tailored for businesses seeking a unified phone system alongside programmable messaging from a single provider. The Signalmash team manages number porting and 10DLC registration seamlessly. Operating on direct Tier-1 US carrier connections including AT&T, Verizon, T-Mobile, and Bandwidth, Signalmash provides transparent flat rates for messages and minutes, with carrier charges passed directly at cost. Additionally, each customer is granted a personalized Slack or Microsoft Teams channel, connecting them with named engineers rather than navigating a ticketing system.
Contact Center as a Service (CCaaS) Provider
Signalmash offers comprehensive solutions for contact centers, including Bring Your Own Carrier (BYOC) SIP trunking, local and toll-free number services, and Branded Caller ID to enhance answer rates. Additionally, they provide two-way SMS and RCS capabilities that seamlessly integrate with your current CCaaS or CRM systems. Operating on direct Tier-1 connections with major US carriers such as AT&T, Verizon, T-Mobile, and Bandwidth, Signalmash features straightforward pricing with flat rates for messages and minutes, passing on carrier fees at cost. Each client receives a personalized Slack or Microsoft Teams channel along with dedicated engineers, ensuring immediate support rather than navigating a ticketing system.
Communications Platform as a Service (CPaaS)
Signalmash is a specialized Communications Platform as a Service (CPaaS) that offers a comprehensive suite of messaging and voice solutions, including SMS, MMS, RCS, voice services, SIP trunking, phone number management, and Branded Caller ID, all accessible through a single REST API and user-friendly portal. With features like 10DLC, toll-free, and RCS sender registration handled for you, it is designed specifically for small to mid-sized businesses, mid-market enterprises, and SaaS providers seeking robust carrier-grade infrastructure without the frustration of impersonal support. Signalmash operates on direct connections with top-tier US carriers (AT&T, Verizon, T-Mobile, and Bandwidth), providing clear, flat-rate pricing for messages and calls while passing through carrier fees at their actual cost. Additionally, each client is assigned a dedicated channel in Slack or Microsoft Teams, offering direct access to named engineers rather than being funneled into a ticketing system.
Communication APIs
Signalmash's communication APIs encompass SMS, MMS, RCS, voice services, phone numbers, and caller-ID branding, all accessible through a single account and a unified invoice. This streamlined approach, which includes hassle-free carrier registration, is the reason why many SaaS platforms choose to integrate Signalmash rather than establishing their own telecom infrastructure. Operating on direct Tier-1 US carrier partnerships (including AT&T, Verizon, T-Mobile, and Bandwidth), Signalmash offers straightforward pricing with flat rates for messages and voice minutes, while carrier fees are transparently passed on at cost. Additionally, each customer is provided with a dedicated channel on Slack or Microsoft Teams, complete with named engineers for support, eliminating the need for a ticketing system.
Cloud PBX Provider
MashPBX, developed by Signalmash, is a cloud-based PBX solution that integrates traditional phone system functionalities with customizable SMS, voice, and RCS capabilities within a single account. This means that the phone number used by customers for calls is also the number designated for text messaging. Signalmash operates on direct Tier-1 connections with major US carriers such as AT&T, Verizon, T-Mobile, and Bandwidth, offering transparent, flat rates for messages and minutes while passing carrier costs directly to customers. Additionally, every client is provided with a dedicated channel on Slack or Microsoft Teams, connecting them to named engineers, eliminating the need for a ticketing system.
Business VoIP Provider
Signalmash offers a comprehensive suite of business VoIP solutions, including SIP trunking, local and toll-free phone numbers, number porting, STIR/SHAKEN attestation, and branded caller ID, all utilizing the same carrier network that manages its messaging services. The platform operates on direct connections with leading Tier-1 US carriers such as AT&T, Verizon, T-Mobile, and Bandwidth. Signalmash features transparent pricing with flat rates per message and per minute, while passing carrier charges directly at cost. Additionally, each customer is provided with a dedicated Slack or Microsoft Teams channel, ensuring direct communication with named engineers rather than navigating through a ticketing system.
Business Text Messaging Platform
Signalmash offers a comprehensive solution for business text messaging, featuring a collaborative inbox and an API that facilitates two-way SMS, MMS, and RCS communications via local, toll-free, or short-code numbers. The platform includes essential features like consent management, handling of STOP/HELP requests, and enforcement of quiet hours. Utilizing direct connections to Tier-1 US carriers such as AT&T, Verizon, T-Mobile, and Bandwidth, Signalmash provides transparent pricing with flat per-message and per-minute rates, ensuring that carrier fees are charged at cost. Furthermore, every client receives a dedicated channel on Slack or Microsoft Teams, along with access to named engineers, eliminating the need for traditional ticket queues.
Business Phone Systems
Signalmash provides a robust business telephony solution through its MashPBX, which is a cloud-based PBX featuring capabilities like auto-attendant, call routing, voicemail, and CPaaS APIs. Unlike many competitors, Signalmash utilizes its proprietary carrier connections instead of relying on resold networks. The service operates on direct Tier-1 connections in the US, including AT&T, Verizon, T-Mobile, and Bandwidth. Customers benefit from transparent pricing with flat rates for messages and minutes, as carrier fees are passed on at cost. Additionally, Signalmash enhances customer support by offering each client a dedicated Slack or Microsoft Teams channel, complete with assigned engineers, eliminating the need for a traditional ticketing system.
Bulk SMS Software
Signalmash specializes in bulk SMS services, offering short codes and verified toll-free numbers capable of handling hundreds of messages per second. The platform efficiently manages traffic according to each carrier's 10DLC throughput limits and transparently passes on carrier surcharges at cost, with no monthly minimum requirements. Operating through direct Tier-1 connections with major US carriers like AT&T, Verizon, T-Mobile, and Bandwidth, Signalmash provides straightforward flat rates for messages and minutes, ensuring that all carrier fees are charged at cost. Additionally, every client receives their own dedicated Slack or Microsoft Teams channel, complete with named engineers, eliminating the need for a traditional ticketing system.
AI Call Center Software
Signalmash serves as the backbone for AI call centers and voice agents by offering robust SIP trunking with optimized routing across the US. Their services include a comprehensive number inventory, customizable Branded Caller ID, and essential compliance tools to ensure that AI dialers remain effective and adhere to TCPA regulations. Operating on direct connections with leading Tier-1 US carriers like AT&T, Verizon, T-Mobile, and Bandwidth, Signalmash provides straightforward pricing with flat rates per message and per minute, while carrier costs are transparently passed through. Additionally, each client benefits from a personalized Slack or Microsoft Teams channel, complete with assigned engineers, eliminating the need for a traditional ticketing system.
More Signalmash Categories
A2P SMS
Signalmash specializes in A2P SMS by registering your brand and campaigns with The Campaign Registry, ensuring the verification of toll-free numbers, and overseeing trust-score throughput across various carriers. This comprehensive management helps guarantee that your application-to-person messages are successfully delivered, avoiding potential blocks. Operating on direct connections with leading Tier-1 US carriers such as AT&T, Verizon, T-Mobile, and Bandwidth, Signalmash offers transparent flat rates per message and per minute, with carrier fees charged at cost. Additionally, each customer is provided with a dedicated Slack or Microsoft Teams channel, complete with named engineers for personalized support, eliminating the need for a ticketing system.
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Would you Recommend to Others?1 2 3 4 5 6 7 8 9 10
A Trustworthy Platform for Encrypted Business Communication
Date: Mar 28 2026SummarySignalmash provides a highly transparent communication ecosystem where every message status can be tracked in real time. The platform offers detailed reporting and logs, helping ensure our communication stays both professional and protected.
PositiveOur team uses Signalmash to send promotional SMS and MMS for our business. Its real-time status webhooks provide updates on whether a message was successfully "Delivered" or "Read." They use modern security standards and ensure that communication triggers are authorized and encrypted. Detailed logs are also available, which helps us debug issues faster.
NegativeTo store customer relationship data, we need to connect to an external CRM like Salesforce. Aside from that limitation, the platform provides high-quality service and works well for our team.
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Would you Recommend to Others?1 2 3 4 5 6 7 8 9 10
Finally, a CPaaS That Feels Like a Partner
Date: Mar 26 2026SummaryAs a marketing team, we need our messaging to work — every time, on time. Signalmash delivers on that. Since switching, our SMS open rates have stayed strong and we've had no deliverability surprises. The support is what really sets them apart though — we're not a ticket number here, we're an actual customer with a dedicated channel and real people who care if our campaigns succeed. For marketing teams running time-sensitive campaigns, that reliability and responsiveness is priceless.
PositiveSMS deliverability is excellent and our campaigns go out without issues. The 10DLC registration process was handled smoothly — our campaigns were approved on the first try. Having a shared Slack channel with their team means if anything ever needs attention, we hear back immediately. It feels like an extension of our own team.
NegativeThe self-serve analytics dashboard could offer more out-of-the-box reporting options. We've worked around it, but more pre-built campaign performance views would be a nice addition.
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Best trunk calling app for companies
Date: Mar 29 2026SummaryWe are using tool for the past 1 year. Our team is happy with the tool. They also provide SMS service which helps us to send marketing campaign messages.
PositiveWe are using signalmash to connect to our clients world wide via trunk calls. Setup is easy and requires some coding knowledge. Uninterrupted voice call and IVR help us to connect to clients and to improve our business.
NegativeNothing so far. Our team is happy with the tool. They provide good customer support so that we can connect with them in time of emergency.
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Would you Recommend to Others?1 2 3 4 5 6 7 8 9 10
Signalmash: The Gold Standard for Secure and Verified Business Communication
Date: Mar 29 2026SummaryWe have successfully integrated the Signalmash SMS API, which is now powering our signup 2FA process. We have noticed a significant reduction in login latency since switching our 2FA triggers to Signalmash. The integration process is easy; only a few lines of Java code are necessary to trigger the process. Signalmash has been the backbone of our user access process over the past year.
PositiveWe have incorporated their SMS API into our signup process for Two-Factor Authentication. The platform provides end-to-end encryption of our critical authentication triggers. We also depend on their STIR/SHAKEN certification to guarantee our verification calls don't get flagged as scams. The platform assists us in preventing malicious registrations of "bot" accounts using phone number reputation detection.
NegativeUnderstanding the difference between SIP, REST, and Webhooks takes time for beginners. Other than this we are happy with the platform.
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Would you Recommend to Others?1 2 3 4 5 6 7 8 9 10
Best Omnichannel marketing tool
Date: Mar 29 2026SummaryOverall, we are pretty happy with this platform. It's easy to use and has a great number of features. The business plans are cost-effective and ideal for small and mid-sized businesses. It helped us achieve our marketing goals.
PositiveBuilding an omnichannel marketing campaign with Signalmash was seamless. The prebuilt templates are appealing and useful in a wide spectrum of campaigns. The messaging APIs worked perfectly for our WhatsApp campaign. Offer real-time message delivery.
NegativeIt doesn't support major automation for target-based marketing which is the only downside I found in this platform.
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Would you Recommend to Others?1 2 3 4 5 6 7 8 9 10
A Robust and Compliant Solution for High-Volume SMS Marketing
Date: Mar 29 2026SummaryWe rely on Signalmash to handle the SMS marketing campaigns. Scheduling high-volume messages for special events has become a one-click process for our team. We have seen consistent delivery rates even during peak traffic hours. We never have to worry about the "throttling" issues we faced with our previous provider.
PositiveOur team use this tool for SMS marketing purpose. We can easily schedules high-volume SMS for special events schedules. We can create dynamic fields for each SMS with the customer's name. Platform manages opt-out (STOP) requests automatically to keep us compliant with the rules.
NegativeInitial onboarding fees is high for companies looking for short term projects. Non technical users cannot set up flows easily.
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Would you Recommend to Others?1 2 3 4 5 6 7 8 9 10
Does it's job pretty well, Highly recommend !!
Updated: Mar 29 2026SummaryHands down Signalmash is a simple and no-brainer service communication solution, just a few minutes of setup and we are good for deployment. Since we deployed this product, we have found a significant increase in customer engagement and lead conversion.
Positive1. Excellent tool for voice call-based communication with TCPA compliance.
2. Supports modern RCS (Rich Communication Service).
3. Support WhatsApp communication for OTP verification, delivery status and promotional messages with attached image.
4. The user interface is intuitive.
5. Provides instant lead alert to approach without wasting time.NegativeNothing so far, had a great experience with Singnalmash.
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Would you Recommend to Others?1 2 3 4 5 6 7 8 9 10
A Robust CPaaS Solution for Seamless Business Growth
Date: Mar 28 2026SummaryOverall, we’re happy with the tool. Signalmash has helped us grow our business by making it easier to send promotional messages. It also offers low-cost trunk call routing, which has been useful for us. In general, it’s a helpful option for organizations looking for a platform to support and boost their business.
PositiveSignalmash is a really helpful CPaaS application for our organisation. We’re able to send SMS easily for OTP verifications as well as marketing promotions. We can also interact with our clients who are abroad through the trunk call service provided by Signalmash. The learning curve is easy, and even someone with no IT knowledge can quickly learn how to use the tool.
NegativeTheir higher-tier plan is expensive. Aside from that, we haven’t faced any issues with the tool so far.
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Would you Recommend to Others?1 2 3 4 5 6 7 8 9 10
The response management is excellent, I love it
Updated: Apr 02 2026SummaryOur transition to signalmash has been a resounding success in centralizing support communications. We've reduced customer wait times thanks to the stability of their voice connections. It's a highly recommended solution for companies that need to grow rapidly and require a reliable communications infrastructure that won't fail during peak demand.
PositiveIt's amazing software, It's easy to acquire, Thanks to signalmash, we acquire local phone numbers in different regions effectively and instantly. This allowed us to scale our technical support department without the typical delays of traditional providers. Call latency is virtually nonexistent, and integration with our existing crm was seamless. Furthermore, the dashboard offers real-time analytics that are essential for measuring daily call volume.
NegativeAlthough the platform is very robust, the user panel interface feels somewhat cluttered with technical options that could confuse administrative staff unfamiliar with the development environment. We would like to see a more streamlined console version for purely operational tasks.
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Would you Recommend to Others?1 2 3 4 5 6 7 8 9 10
Seamless integration with sales platforms for scalability
Date: Mar 29 2026SummaryWe achieved a notable increase in user retention through personalized and secure communication flows. The key benefit is the robustness of its infrastructure, which handles massive traffic spikes during Black Friday without critical latency.
PositiveThe platform enhances my digital sales strategy by enabling immediate and automated communication after a customer abandons their purchase. I value the ability to send dynamic coupons via SMS, which accelerates customer decision-making and significantly increases our store's average order value.
NegativeThe lack of interactive visual templates for RCS message design limits our creative capacity in seasonal marketing campaigns.
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Would you Recommend to Others?1 2 3 4 5 6 7 8 9 10
Perfect automatic management of text and voice messages
Date: Apr 02 2026SummaryWe were able to resolve our customers' issues very quickly; the service—which we can program to provide our customers with an automated response—is extremely important. I can recommend it; we have had positive experiences with it.
PositiveI like how versatile and indispensable it has become—both for our company and for us, the people who are part of it. I like that it automatically responds to messages from our customers. It enables us to improve our customer service more easily and cost-effectively. I like the user interface for its simplicity and its interactive capabilities.
NegativeSo far, we have encountered no problems or negative experiences whatsoever; SignalMash has enabled us to reach our customers faster and without any issues.
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Operational profitability through automation of financial processes
Date: Mar 29 2026SummaryThe implementation resulted in a drastic optimization of resources allocated to identity verification and proactive collections. The key benefit is the consolidation of a profitable communications ecosystem that supports the exponential growth of our portfolio.
PositiveSignalmash stands out for offering granular visibility into messaging expenses, allowing me to create highly accurate financial projections for the next quarter. I especially value the ease of auditing the return on investment for each automated campaign, thus optimizing institutional cash flow.
NegativeThe platform has some limitations in directly exporting data to formats compatible with advanced business intelligence software without using external connectors.
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Would you Recommend to Others?1 2 3 4 5 6 7 8 9 10
Seamless Messaging Integration for Our Client Campaigns
Date: Mar 26 2026SummaryWe're a design-first agency and communications infrastructure isn't our core focus — which is exactly why Signalmash works for us. We needed a reliable SMS and voice solution that wouldn't require constant management or troubleshooting. Signalmash delivers that. Onboarding was smooth, uptime has been flawless, and when we needed support for a client launch at short notice, their team showed up. For creative agencies that need comms to work in the background without drama, Signalmash is the right call.
PositiveSetting up SMS notifications for client projects was surprisingly simple. The API is clean and our developers had it integrated quickly. Whenever we've had questions, the Signalmash team responds fast through our dedicated Slack channel — no waiting around. It just works, which is all we need when we're on a deadline.
NegativeWould love more pre-built design templates for SMS campaign flows. As a visual team, having branded message previews or richer formatting options would be a bonus.
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Would you Recommend to Others?1 2 3 4 5 6 7 8 9 10
Transparent financial management with full operational scalability
Date: Mar 28 2026SummaryIt has been instrumental in reducing customer acquisition costs through direct and cost-effective communication. The main benefit is the ability to scale operations rapidly during peak seasons without compromising institutional financial stability.
PositiveSignalmash enhances my financial management by offering a predictable cost model for our mass promotional communications and transactional alerts. I value the transparency of its billing, which allows me to allocate expenses with surgical precision to each retail business unit.
NegativeThe lack of native integrations with certain retail-specific accounting ERPs necessitates periodic manual data reconciliations.
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Would you Recommend to Others?1 2 3 4 5 6 7 8 9 10
Powerful APIs, Even Better Support
Date: Mar 28 2026SummaryWe have been using the tool for the past year. Signalmash is a powerful communication platform that offers high-performance Voice and SMS APIs. The platform provides low latency and high deliverability, and it helps keep our network secure from scammers. Integration with the RESTful APIs is straightforward and easy.
PositiveSignalmash helps us integrate professional communication features into our workflows. With the Voice API, our application can initiate an outbound call or handle an incoming one without needing a human operator. We just need to write a few lines of code and sign in with an API token to receive calls, then route them instantly through Tier-1 carriers (like AT&T or Verizon) to reach the end user’s phone. This also helps us ensure the network stays “clean” and reduces the risk of scammers. Their support team is really good, and they’re always there when we need help.
NegativeNothing negative so far—our team is happy with the performance.
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