Phone — Yapzek Bridge for ApeX / here

Phone · Yapzek Bridge

Let AI take your calls

Yapzek Bridge connects your mobile phone (over Bluetooth, with an ESP32 board) or your landline (with a Dinstar FXO gateway) to your computer. Apex — or the AI you choose — answers and makes the calls. Everything runs on your own computer.

Mobile phone — ESP32 Landline — FXO gateway

Yapzek Bridge home screen — **Yapzek Bridge** — Bluetooth phone (ESP32) or landline (FXO). Connect your phone, let AI handle the calls.

ESP32 board, Android and iPhone — **Mobile — ESP32** · Android and iPhone both work; the phone pairs with the bridge like a car kit.

Dinstar FXO gateway, desk and cordless phone — **Landline — FXO** · Dinstar DAG1000-2O; works with the line of a regular desk or cordless phone.

Status tab — **Status** · ESP32, phone, AI and local AI at a glance.

Phone tab — **Phone** · Pair a phone and see what it supports.

Settings tab — **Settings** · Phone line, FXO gateway and the AI for incoming and outgoing calls.

Call log tab — **Call log** · Every call with its recording and transcript.

MCP tab — **MCP** · ApeX / here and other MCP clients on this computer place calls and run the live conversation.

Mobile phone — ESP32

Your phone, answered by AI

An ESP32 board becomes the Bluetooth hands-free of your phone. Your computer then answers and makes calls, and the AI you choose does the talking — everything stays on your computer.

What you need

ESP32 development board

With the original ESP32 chip: modules named ESP32-WROOM-32, -32D or -32U. Boards are sold as “ESP32 DevKit V1”, “DevKitC”, “NodeMCU-32S” or “ESP-32S (30 pin)”. Either 30 or 38 pins works.

USB cable that carries data

Micro-USB on most boards (some newer ones use USB-C). Charge-only cables will not show a COM port.

A computer + a phone

Windows with Yapzek Bridge installed, and a phone with Bluetooth. Android and iPhone both work.

Not compatible: ESP32-S2, ESP32-S3, ESP32-C3 and ESP32-C6 boards. They have no Bluetooth Classic, so they cannot act as a hands-free. Look for the plain “ESP32” / “WROOM-32”.

Tip: boards with a CP2102 or CH340 USB chip are detected automatically by the Firmware tab. Prefer WROOM-32 / -32D (antenna on the module); -32U needs an external antenna.

Where to buy

Each link opens a search for compatible boards. Check that the listing says ESP32-WROOM-32 / DevKit, not S3 or C3.

Amazon.comSearch “ESP32-WROOM-32 development board” ↗
Amazon.com.trSearch “ESP32-WROOM-32” ↗
TrendyolSearch “esp32 wroom-32” ↗
RobotistanSearch “esp32” ↗ — look for “ESP32 WROOM 32D Geliştirme Kartı”.
EspressifESP32 — maker’s page ↗ · ESP32-WROOM-32 datasheet (PDF) ↗

Set it up

Plug the board into your computer.Use the USB cable. Windows usually installs the CP210x / CH340 driver by itself. If no port shows up in the next step, install the driver from the chip maker (Silicon Labs CP210x or WCH CH340) and reconnect.
Flash the firmware.In Yapzek Bridge, open the Firmware tab. The port is detected automatically. Click Detect to confirm the chip, then Flash. It takes about a minute; the board restarts as YAPZEK-XXXX. The flashing tool is built into the app — nothing else to install.
Pair your phone.On the phone: Bluetooth settings → pair with YAPZEK-XXXX. Accept the confirmation code and allow access to calls. The bridge reconnects to paired phones automatically.
Check the connection.The Phone tab shows the phone as Connected; the Status tab shows the ESP32 and the phone.
Choose who talks.Settings tab: pick the AI for incoming and outgoing calls — ElevenLabs (API key + agents), Local AI (runs on your computer) or an MCP client such as ApeX / here. Set auto-answer and recording, then save.
Make or take a call.When the phone rings the bridge answers and the AI talks; the Call tab shows the live conversation. Dial out from the Call tab. Every call is in the Call log with its recording and transcript.

Landline — FXO gateway

Your landline, answered by AI

A Dinstar DAG1000-2O FXO gateway connects a fixed phone line to your computer over your network. The bridge talks to it directly — no PBX, no cloud account.

Buy it here:VoIP Mağaza — DAG1000-2O ↗
DinstarMaker’s website ↗

What you need

Dinstar DAG1000-2O

Two FXO ports; the bridge uses one line. The 12 V adapter comes in the box.

A phone line

The analogue landline (RJ11) goes into FXO 0.

Network cable

Gateway LAN port to your router or switch — the same network as your computer.

Set it up

Connect the gateway.Plug the phone line into FXO 0, connect LAN to your network and power the gateway with its 12 V adapter. Find its address in your router’s device list and open it in a browser (the manual has the default login).
Tell the gateway where your computer is.In the gateway: add an IP trunk with your computer’s network address and port 5060 (Yapzek Bridge shows the address under Settings → Phone line). Keep registration, authentication and heartbeat off — the bridge does not register.
Make the line ring into the bridge.Port group: add FXO port 0 with registration off and “Offhook auto-dial” set to a number (for example 1000) with 0 s delay. Routing: Tel→IP from that port group to the IP trunk, and IP→Tel from the IP trunk to the port group, both with prefix “any”.
Check the audio profile.IP profile: codec G.711 (PCMU or PCMA) and DTMF as RFC 2833. Save and let the gateway restart if it asks.
Switch the bridge to the landline.Settings → Phone line: switch on the FXO gateway, enter its address, choose it as the active line and save. The Status tab shows “FXO gateway — ready”.
Make or take a call.Calls on the landline ring into the bridge and the AI answers; dial out from the Call tab.