NetSIP - SIP Trunk
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NetSIP is an Australian SIP Trunk provider which offers unbeatable technical support as well as product quality. They are at the forefront of the voice services industry in Australia.
Reference website: NetSIP
Before configuring the SIP trunk go through the following checklist and make changes where necessary:
- NAT (when used) created to 3CX
- Firewall Checker passed
- Firewall SIP ALG checked and if present disabled
Further setup information can be found in our Academy: 3CX Academy Basic course
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 Phone System 15.5 SP4
Below is a short overview of the provider's capabilities and services and whether they’re supported or not:
- CLNS (Clip No Screening): No
- Catch All Routing: Yes
- Fax T.38 support: Yes
- CLIR (Number Suppression): No
- DTMF via RFC 2833: Yes
- Codec Order: G711A, G711U
- NAT Support: Yes
Creating a SIP Account
The first you must do is log into the portal with the credentials that NetSIP has provided you with. The login can be found here: https://portal.netsip.com.au.
Once you have logged in, go to “NetSIP Voice” → “SIP Trunks” and you will see a list of all your existing SIP accounts. From here, you can either edit a SIP account or create a new one.
To create a new SIP Account, click on the “Add a New Trunk” button. Then you will get prompted with the SIP Account settings where you must configure the following:
This is a “friendly” name that you can enter that will identify this trunk throughout the NetSIP portal..
2. Restrict connections to the following countries
Make sure that you select the country your 3CX system is located.
Note: If you are hosting your 3CX, the country where it is located might be located outside the one you are physically in.
Upon creating a new SIP Account, a random password is generated. Make sure you make note of this as you will be needing it in the next section “Configuring the Trunk with 3CX” when settings up your Trunk in 3CX.
4. Outgoing Caller ID
Here you can set the default Outgoing Caller ID your 3CX will present. Although this will be set through 3CX automatically, it is recommended that you enter one of your Indial/DID numbers here in the E.164 number format (e.g. 61280743741).
Once you have filled in the above fields, press “Save Details” to save the settings. The last information you need to collect is the number at the top of the page next to the text “Editing SIP Trunk” as shown below. This will be used as your Trunk username later in this guide in section “Configuring the Trunk with 3CX”.
Acquiring Numbers for your SIP Account
Now that you have created a SIP Account, you must allocate numbers to it. To do this go to “NetSIP Voice” → “Indials”.
Here you will see a list of all the numbers you have allocated to the customer account and you can also order new ones.
You can either allocate an existing number to your SIP Account by selecting a number and pressing the “SIP Accounts” button, or you can purchase a new number.
To assign Indials to your SIP Account, click on the number and then “Add Destination”. Here set the “Destination Type” to SIP and the SIP Transport to “TCP”. Next in the “Destination Data” enter as shown below, where the obscured part is the Trunk as found in the previous section.
Once you have created the SIP Account and assigned numbers to it, you are now ready to configure your NetSIP Trunk in 3CX.
Configuring the Trunk with 3CX
The general instructions outlining how to add a new SIP Trunk to 3CX can be found here.
Adding the Trunk
Go to “SIP Trunks” and select “Add SIP Trunk”
- Select Country: AU
- Select Provider in your Country: NetSIP
- Main trunk number: You can get the number from your billing portal as described above. You must enter the number in the E.164 number format (e.g. 61280743741)
- Press OK
Under the “General” tab in the “Authentication” section enter your Authentication ID and Password as collected in the previous section.
Once you have filled in these fields, scroll to the top of the page and press OK. At this point if you refresh the page you should see your NetSIP Trunk appear as Registered.
Adding Additional DIDs
To associate all other DIDs/Numbers you have in your NetSIP account with 3CX, you need to go to the Management Console → SIP Trunks, double-click on your NetSIP 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 the E.164 Number format (e.g. 61280743741) and press OK once you have finished.
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.
When configuring NetSIP SIP Trunks in 3CX, all numbers should be entered in the E.164 number format (e.g. 61280743741), otherwise call routing will fail.
Outbound Caller ID
With NetSIP Trunks you can only present Indial/DID numbers you have associated with your account as Outbound Caller ID. For this to work, in any field within 3CX where the Outbound Caller ID can be set, the numbers must be input in the E.164 format (e.g. 61280743741).
If you wish to use other numbers, proof of ownership must be provided by contacting NetSIP support.
When configuring your Outbound Rules make sure that all numbers are dialed either in the National (e.g. 0280743741) or E.164 format (e.g. 61280743741).
More information about how to create Outbound Rules and how they work can be found here.