Setup New Zealand SIP Trunk Provider Lightwire with 3CX
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Lightwire Business – New Zealand SIP Trunk

Lightwire Business

On this topic

Lightwire Business

About Lightwire

System Preparation

3CX Version

Provider Capabilities

Configuring the Trunk with 3CX

Adding the Trunk

Adding Additional DIDs

Creating Inbound Rules

Number Format

General

Outbound Caller ID

Outbound Rules

About Lightwire

Lightwire’s SIP Trunking service is designed to be low cost and flexible while at the same time offering you a reliable and efficient service.

Reference website: Lightwire

System Preparation

Before configuring the SIP trunk it is required to go through the following checklist and make changes where necessary:

Further setup information can be found in our Academy: 3CX Academy Basic Course

3CX Version

Some providers gained support and compatibility with 3CX on a specific product version. It is advisable to always run the latest version of 3CX to ensure ongoing compatibility.

Minimum 3CX Version: 3CX v15.5 SP4

Provider Capabilities

Below is a short overview of the provider's capabilities and services and whether they’re supported or not:

  • CLNS (Clip No Screening): Yes
  • Catch All Routing: Yes
  • Fax T.38 support: Not supported
  • CLIR (Number Suppression):         Yes
  • DTMF via RFC 2833:        Yes
  • Codec Order: G711A, G711U, GSM-FR
  • NAT Support: Yes

Configuring the Trunk with 3CX

The general instructions outlining how to add a new SIP Trunk to your 3CX installation can be found here.

Adding the Trunk

Go to “SIP Trunks” and select “Add SIP Trunk”

  • Select Country: NZ
  • Select Provider in your Country: Lightwire
  • Main trunk number: This will have been provided to you by Lightwire. You must enter the number in the international number format (e.g. 6491234567)
  • Press “OK”

Under the “General” tab in the “Trunk Details” enter the registrar, and in the “Authentication” section your Authentication ID and Password (these will be supplied to you by Lightwire).

Once you have filled in these fields as given to you by Lightwire, scroll to the top of the page and press OK. At this point if you refresh the page you should see your Lightwire Trunk appear as “Registered”.

Adding Additional DIDs

To associate all other DIDs/Numbers you have in your Lightwire account with 3CX, go to the Management Console → SIP Trunks, double-click on your Lightwire Trunk and go to the “DIDs” tab.

Here you should already see 1 entry; that is the Main Trunk number you have set. Add all other DIDs/Numbers you have to the list in a international number format (e.g. 6491234567) and press “OK”.

Creating Inbound Rules

Now that you have associated all your DIDs/Numbers with your SIP Trunk in 3CX, you can create Inbound Rules to set where calls will be routed when those numbers are called. Instructions on how to create Inbound Rules can be found here.

Number Format

General

When configuring Lightwire SIP Trunks in 3CX, all numbers should be entered in international number format (e.g. 6491234567), otherwise call routing will fail.

Outbound Caller ID

Lightwire Trunks support Clip No Screening which means you can present any number as Outbound Caller ID.

Outbound Rules

When configuring your Outbound Rules make sure that all numbers are dialed either in the National (e.g. 091234567) or  International (e.g. 006491234567) format. More information about how to create Outbound Rules and how they work can be found here.

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