Peering, Registration & IAX

  • P-Asserted-Identity

    Use P-Asserted ID where you need to hide the outbound CLI with ‘Anonymous”. As with Outbound trunking, to avoid number spoofing, sys admins can only present DID numbers currently held by the customer account.
  • Registration, Peering and IAX2 explained

    SIP Registration “Registration” is used to connect IP phones and some IP-PBX machines to our hosted cloud PBX using a UserName and Password to authenticate access. Required Settings 1. UserName: [phone number] eg 612898085001 2. Password: account or line 3. Proxy: call.sipcity.com.au + Port: 5...
  • SIP Error Response Codes

    401 Unauthorised On our network the "401 Unauthorised" relates to Registration only and is part of our authentication INVITE process, where your phone system first attempts to communicate with us. We reject the INVITE with the 401 and expect your system to return the correct AUTH details via an ...
  • SIP Peering - AU

    SIP Peering (also called SIP Trunking) enables you to statically connect your IP-PBX public interface (WAN IP) with our public IP while we in-turn limit access to your nominated static IP. Note: Peering differs from Registration which relies on an authenticated UserName, Password to connect to o...
  • VoIP Number Formats | Dial Plan Format

    VoIP Number Formats | Dial Plan Format For VoIP number formats calls in local, national and mobile cases we use 10 digit dialing (xx xxxx xxxx), with international calls prefixed with 0011+ [CountryCode] and finally special numbers such as 13/1300, 1800 presented in local dialing format (see exa...
  • Why can’t I register my VoIP device?

    Firewalls are a common cause of SIP registration failure with your VoIP device where the firewall blocks incoming traffic required by our SIP registration process. Remember that the process of any SIP registration comprises a sequential number of requests and challenges between your PBX or handse...