$100 for a Home Phone System?

$100 for a Home Phone System

$100 for a Home Phone System is possible? It was totally a dream if living in twenty years ago. At that time, one line (ether PSTN or extension) would cost you around 100 dollar. Only big company could afford such analog PBX, like PBX made by Nortel, SIEMENS, NEC, Panasonic……….

However, you can build a home phone systme for three-bedroom house by as low as $100 now.

Why do you need a home phone system?

  • Your home or house too big, and you have to speak very loudly to let others hear.
  • Home phone system as paging system, no other paging system needs.
  • Easy to deploy multi phone line/number for different location or rooms.
  • Hand-free talking increases the communication efficiency
  • Connecting an extension in other cities or places.
  • Morning Call for each extension.
  • Voicemail for each extension
  • Voicemail to email
  • Fax-function could be set. ( need high-performance server)



Assume your home has already had below items:

  • internet connection
  • a router 
  • Ethernet port (RJ45) in each room/ place
  • some smart phones either iPhone or Android

Hardware for $100 Home Phone System

PBX server:   from aliexpress.com

Orange Pi PC + Power Support + Shipping= $19 + $9.91 = 28.91 from aliexpress.com

Orange Pi for $100 Home Phone System

IP Phones:

CISCO refurbished SPA303 or SPA504G: $15 x 3 = $45 including shipping from ebay

Power supply for CISCO phone: if your network switch doesn’t support POE

5V / 2A power supply: $3.05 x 3 =$9.15 inncluding shipping from ebay.

Network cable

CAT5e ethernet cable:  $1 x 4 = $4 from local dollar store.


You can also use free softphone on your smart phone as an extension.

  • Zoiper
  • GS wave
  • CSipSimple
  • Linphone

Free Software for $100 Home Phone System:

  • FreePBX
  • FusionPBX

If you have a x86 desktop or laptop on hand , Issabel is also a good option for newbie. 

Estimated total costs:

The below prices may vary in different time, so keep watching on aliexpress, ebay or Amazon and good luck!

ItemQuantityUnit PriceSub-Total
Orange Pi plus power supply1$28.31$28.31
IP phone3$15.00$45.00
Power supply for IP Phone3$3.05$9.15
Ethernet Cable4$1.00$4.00
Softphone on Smartphoen$0.00
Free Software$0.00
Total Estimated: $86.46


In conslucion, you can own a home phone system with budgetd costs, which could be less than 100 dollar with the above assumption.

CISCO IP Phone on Amazon