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Phone Setup Guide

Cisco SPA3xx/5xx Series Phone Setup

Configure Cisco SPA series IP phones to work with VoipPlus service. This guide covers SPA303, SPA504G, SPA508G, SPA509G, SPA525G, and similar models.

Option 1: Auto-Provisioning (Recommended)

Let us configure your phone automatically. Simply provide your phone's MAC address and we'll set everything up on our provisioning server.

Steps:
  1. Find the MAC address on the label on the bottom of your phone
  2. Send the MAC address to VoipPlus support
  3. We'll create your configuration and send you a provisioning URL
  4. Enter the provisioning URL in your phone's Profile Rule setting
  5. Reboot the phone—it will configure itself automatically
Cisco Profile Rule Format:
<Profile_Rule>http://provisioning.voipplus.net/SIP$MA.xml</Profile_Rule>
The $MA is replaced with your phone's MAC address automatically.

Option 2: Manual Configuration

Configure the phone yourself through its web interface. Follow the detailed steps below.

You'll need:
  • Phone's IP address (check phone menu or DHCP leases)
  • Your VoipPlus SIP credentials (Username and Password)
  • Computer on the same network as the phone

See detailed configuration steps below.

Manual Setup

Step-by-Step Manual Configuration

Step 1: Access Web Interface

  1. Find your phone's IP address:
    • Press the Setup button on the phone
    • Navigate to Network → Current IP
  2. Open a web browser on your computer
  3. Enter the phone's IP address in the address bar
    http://192.168.1.xxx
  4. Click Admin Login (top right)
  5. Default password is usually blank or admin

Step 2: Navigate to Line Settings

  1. Click Admin Login then advanced
  2. Click the Ext 1 tab (or Line 1 on some models)
  3. You'll see sections for:
    • Proxy and Registration
    • Subscriber Information
    • Audio Configuration
Configuration Values

Required Settings

Proxy and Registration Settings

Setting Value
Proxy sip.voipplus.net:5060
Register yes
Register Expires 300
Use Outbound Proxy no

Subscriber Information

Setting Value
Display Name Your extension number or name (e.g., 204)
User ID Your SIP username (provided by VoipPlus)
Password Your SIP password (provided by VoipPlus)
Auth ID Same as User ID (leave blank if not required)

NAT Settings

Setting Value
NAT Mapping Enable yes
NAT Keep Alive Enable no

Audio Configuration (Recommended)

Setting Value
Preferred Codec G711u
Second Preferred Codec G711a
Third Preferred Codec G722
Use Pref Codec Only no
Optional Settings

Recommended Additional Configuration

Time Zone (System Tab)

Set the correct time zone for accurate call logs:

  • Time Zone: GMT-06:00 (Central Time)
  • Daylight Saving Time Rule:
    start=3/8/7/2:0:0;end=11/1/7/2:0:0;save=1

NTP Server

For automatic time synchronization:

  • Primary NTP Server: pool.ntp.org

Voicemail Button

Configure the voicemail speed dial:

  • Voice Mail Number: *97

Dial Plan (Optional)

Recommended dial plan for North American dialing:

(*xx|911S0|0|00|[2-9]xxxxxx|1xxx[2-9]xxxxxxS0|xxxxxxxxxxxx.|*xx.)
Finish Setup

Save Settings and Test

  1. Save your changes: Click Submit All Changes at the bottom of the page. The phone will reboot.
  2. Check registration: After reboot, the line button should show solid (registered). If flashing, check your credentials.
  3. Test outbound: Make a test call to verify outbound calling works.
  4. Test inbound: Call your VoipPlus number from another phone to test incoming calls.
Troubleshooting
  • Phone not registering: Double-check username and password. Verify the proxy address.
  • No audio on calls: Check NAT Mapping Enable is set to Yes.
  • One-way audio: Your firewall may be blocking RTP ports. Contact support.

Need Help With Setup?

Contact us with your phone's MAC address and we can configure it remotely via provisioning.

Call 1-847-984-1184 Contact Support