u/Glad-Vehicle-5832

I have a full time job that I do in the evenings it is 9hours.. Basically every other hour that I am awake has gone into building a Product from scratch for the last couple of months. I made a PBX setup, a billing system, an Android dialer app, the thing. Some weeks I was doing sixteen to eighteen hour days between the job and this project. I lost a lot of sleep chasing bugs that made zero sense at three in the morning like SIP and NAT issues Android build failures because of leftover files messing up the resource merger, database stuff server hardening etc.

Anyway it actually works now. Everything is stable. I am genuinely proud of it honestly I did not think I would get here.

I never really planned past making it work. For like the roughly 1 year I have been paying server costs and domain cost out of my own pocket and I have zero customers. Burning a Hole in my pocket. Building the PBX was the part I thought was gonna be hard but turns out getting someone to actually pay for the hosted PBX is harder.

I am a developer, not a sales guy. I have no audience, no network, no idea how business to business software as a service people normally find their customer when they are starting from literally nothing.

If you were in this spot, with a working Product and zero customers what would you actually do first? Which platform have you used or which can provide better results.

I just cannot keep refining the product and burning a bigger hole in my pocket. I need to start having some payback.

Can someone guide me? who have actually been stuck in this situation and gotten out of it.

I've been a silent reader here for quite a while, and I wanted to share my journey because I could really use some advice.

For the past 8 months, I've been building a hosted PBX from scratch.

I work a full-time evening job (around 9 hours), and after getting home I'd spend almost the rest of my day working on this project. There were weeks where I was putting in 16-18 hour days between work and development.

There were countless nights chasing bugs that made no sense. I'd finally solve one problem only to uncover another. SIP, TLS, NAT, Android issues, database problems, server configuration—you name it, I probably fought with it at 3 AM.

Somehow, after months of trial and error, I finally reached the point where everything works. The PBX is running, the Android app is working, calls are stable, and I'm genuinely proud of what I managed to build.

But here's the part I never really thought about...

For the last 2 months, the server bills and domain buying have been coming out of my own pocket while I still have zero customers.

Building the product was difficult.

Finding the first customer feels even harder.

I'm a developer, not a salesperson. I have no audience, no marketing experience, and no network in this industry. Every day I keep thinking, "The product is ready... now what?"

So I'd really appreciate advice from people who've been through this.

If you had a working B2B SaaS product but no customers, what would be your next step to get that very first paying customer?

Would you:

• Cold email businesses?
• Reach out on LinkedIn?
• Contact local companies?
• Find resellers or MSPs?
• Use Fiverr or Upwork?
• Something completely different?

I'm not looking for sympathy—just honest advice from people who've already crossed this stage.

Thanks for reading, and I'd genuinely appreciate any suggestions.