Yealink IP Phone – VoIP Configuration

Overview

Yealink IP phones (T2x, T3x, T4x, T5x series) are configured via a built-in web interface. This guide explains how to register your MaxiConnect line in a few steps. Different Yealink models may have slight visual differences, but the menu structure remains similar.

Before you start, have your SIP credentials ready — available in your customer portal at my.maxiconnect.ch.

Part 1: Accessing the Web Interface

Step 1 — Connect your Yealink phone to power and network.

Step 2 — Open the menu on the phone screen.

Step 3 — Select Status.

Step 4 — Note the IP address displayed in the IPv4 field.

For cordless phones: Menu → Status (blue «i» icon) → Base Station → IPv4.

Step 5 — On a PC connected to the same network, open this IP address in your browser.

Step 6 — Enter the login credentials:

Field	Default value
Username	`admin`
Password	`admin`

Step 7 — Click Login.

Part 2: Basic Settings

Step 8 — Select your preferred language in the top right corner (e.g. English).

Step 9 — Go to Settings → Time & Date.

Step 10 — In the Primary Server (NTP) field, enter:

pool.ntp.org

Step 11 — In the time zone dropdown, select +1 Albania, Austria, Belgium…

Step 12 — In the Location field, choose Germany (Berlin) for correct daylight saving time management.

Do not select “Switzerland” — this causes daylight saving time issues.

Step 13 — Click Confirm.

Part 3: SIP Account Configuration

Step 14 — Go to Account → Register.

Step 15 — If configuring multiple numbers, select an available account from the dropdown.

Step 16 — Fill in the following fields:

Field	Value
Label	Your number (e.g. `021 XXX XX XX`)
Display Name	Your number (e.g. `021 XXX XX XX`)
Register Name	Your SIP identifier (format `XXXXXXXXXX.XXX`)
Username	Your SIP number (e.g. `021 XXX XX XX`)
Password	Your SIP password
SIP Server (Server Host)	`sip.phone.maxiconnect.ch`
Port	5060
Outbound Proxy	Leave empty — not required with MaxiConnect

Important: Use your SIP credentials, not your customer portal credentials. The register name is in the format XXXXXXXXXX.XXX and is provided by MaxiConnect.

Step 17 — Enable the Line Active toggle.

Step 18 — Click Confirm.

Step 19 — After a few seconds, the Registration Status field should display Registered.

Part 4: Audio Codecs

Go to Account → Codec
Configure the codecs as follows:

Codec	Status
G.711 PCMA (A-law)	Enabled — priority 1
G.711 PCMU (µ-law)	Enabled — priority 2
G.722	Disabled
G.729	Disabled

Click Confirm

Part 5: Change Administrator Password

For security reasons, change the default web interface password.

Step 20 — Go to Security → Password.

Step 21 — Fill in the fields:

Field	Value
Old Password	`admin` (if unchanged)
New Password	Your new password
Confirm Password	Your new password

Step 22 — Click Confirm.

Warning: If you forget this password, the phone will need to be factory reset.

Factory Reset (if necessary)

If you experience configuration issues, reset the phone to factory settings:

Via the web interface: Settings → Upgrade → Reset to Factory
Via the phone: Menu → Settings → Advanced (password admin) → Reset

Warning: The reset deletes all accounts and configuration.

Technical support: +41 58 521 32 00 — hello@maxiconnect.ch

☎️ Yealink IP Phone – VoIP Configuration