OARC PBX Callbook

Welcome to the OARC PBX/SIP

PBX/SIP kindly hosted by 39D (39support.com)

Channel on Discord server is called #sip-network

Below is the information required to access the PBX/SIP. Please see the Disclaimer at the bottom of the page.

Requesting a number

For all number requests please @2e0emo on discord in the #sip-network room. Mitchell will then provide you with a extension number and server details. Typically this can take about 24 hours but where possible done sooner. You can request two types of number:

  • 1*** – Used for conference rooms
  • 4*** – This is a standard number designed for day to day use
  • 5*** – This is for experimental usage.

PBX Directory

Standard extensions
HH = Hamshack Hotline

    • NameCallsign/sExtension
      Andy 2E0VNX / M7VNX4321
      Ciemon G0TRT4008 & 5008
      Francis M0UKF4001 & 5001
      Hamzah 2E0HXS4005
      HenryJames M7HJR4004
      Lance2E0YLD4011 & 5020
      Mitchell (HamLord)2E0EMO/MB7RMS4444
      Nathan 2M0OCC4006
      Paul M0PLL4009
      Paul M0TZO4469 (HH 14750)
      Robin 2E0GGJ4003 & 5003
Call in conferences

Experimental and some may not be active at certain times.

    • ConferenceName
      1001General Conference
      (If no one else on the conference the on hold will play)
      13001pm daily conference
      1782Pub for pub nights
      (1-PUB on T9 keypads)


Dialling codes

Please always put the * at the start. This will let the PBX know you are not trying to call someone

    • *43 – Delay Echo – Audio is played back after a slight delay.
    • *65 – Speak your extension number.
    • *60 – Speaking clock.
    • *97 – Voice mail.
    • *78 – Do Not Disturb activated.
    • *79 – Do Not Disturb deactivated.
    • *76 – Do Not Disturb toggle.

Server Admins

  • Server Admin is: 2E0EMO (all network issues, server issues, network abuse)
  • Co Admin: 2E0SIP (Bridge and registrations)

If your phone has been blocked

If you feel your phone has been blocked please message 2E0EMO on discord. Please provide the following:

  • Public IP address
  • Your extension
  • If you are in the UK or not in the UK
  • If you have tried to add a new phone
  • If you been experimenting with something.

Supported hardware

Most phones as long as they support VOIP / SIP can be used on the platform. Please check they are not network locked or have any custom firmware on them. This is typical if a phone has been used with 3CX. Below are a few brands that are known to work. If buying a phone please check the power supply is included. If it needs PoE you will need to buy a PoE switch or injector.

  • Yealink
  • Polycom
  • Cisco
  • Fanvil
  • Softphones

Known Working Software / Apps

  • Android
    • GS Wave
    • MizuDroid
    • SipDroid
    • Zoiper
  • Windows
  • Linux
    • Linphone – nice app and worked smoothly. Did cause my VM to crash though.
    • Twinkle – app needs a lot more polish but works well enough
  • iOS / Apple
    • PortSIP – nice easy setup and works very well

Hamshack Hotline

Hamshack Hotline website hamshackhotline.com

  • To dial from Online ARC sip to a Hamshack Hotline (HH) number dial 9 and the extension. eg 912345
  • To dial from (HH) to Online ARC sip – Details to follow


The club phone system is a internal phone network and has no access to any other outside systems including emergency calling.