FXO Gateway for 3CX

[Kane Wong]

Hi;

I am planning to implement the 3CX for my company soon, and we are using PRI and the Analog (legacy phone line from Telco), the analog line is for backup purpose, in the event of PRI failure, we can still dial out through analog line for emergency call, such as 911.

Here is my question #1, my understanding is that in order to use the 3CX with analog line, I need FXO type gateway, is it correct? The FXO port on the device will be connected to our phone jack with regular phone cord, RJ12 and the LAN port on FXO device is connecting to my LAN.

Question #2, what will be the inbound rule looks like if the phone number provided by Telco is 10 digits, such as 416-123-4567, and we accept any call from any number to this 416 number, no matter it is long distance or local calls. I read the setup doc but I am new to 3CX, so I need more information.

Please let me know if you can help. Thanks!

 

[Pete_ITProFL]

You would need an FXO device with at least as many lines as the phone company is giving you. The 3cx server will see that gateway as a trunk, and the inbound rule would take the inbound call, apply a rule as you've written it, and based on that rule send the call to an IVR, end-user, etc.. Your outbound rule would use Route1 as the PRI and Route2 as the FXO. You would receive all calls unless you had a CID rule to reject them.

 

[leejor]

If you have more than one PSTN line, and presumably, a multi line gateway. Some gateways will allow the datafill of the PSTN number, against each line, to allow it to be sent to the PBX (along with caller ID) , in the same manner as a DID service. If this is the set up, then DID rules could be created, to allow each PSTN line to route to a pre-determined destination. Without this, a general rule, applicable to the entire trunk group, no matter the number of lines, would apply.

 

[Kane Wong]

thank you all.

For the analog line, because this is just for emergency use, therefore only one line, not multiple.

Also, in what scenario the FXS device will be used, not FXO.

 

[leejor]

An FXS device allows you to use an analogue set with a VoIP PBX/provider. It supplies battery (dialtone) and ring generator. A device, such as the Linksys/Cisco SPA-3000, or SPA-3102, have one of each

 

[Kane Wong]

Get it. the FXS convert the normal analog phone to VoIP device and using the VoIP service provider. I think; I used that before like what you said the Linksys SPA series product.

Also; during the provision of FXO device in 3CX; we need enter the main trunk number, I believe this is the regular phone number assigned to the line but do I need to enter any long distance prefix there, for example; if the number is (416) 123-4567 where the 416 is the area code and the rest 7 digits is the local number, should I just enter 4161234567 in the main trunk number field, or I have to enter 14161234567, where digit "1" is the long distance call prefix.

 

[eddv123]

To point out a couple of things in regards to your initial post, yes for an analogue line (BT line we call it in the UK) you need an FXO gateway device. For your PRI you will need a device that support E1/T1/ISDN 30 however you must ensure that the line is (I am not sure what you call it in the U.S but Euro ISDN over here - presented like an RJ45 connector) some older ISDN types are co-axial (DASS 2 for example) and are not supported.

I think if you want to stay within the realms of 3CX support maybe a 2 box solution would do it: https://www.3cx.com/voip-gateways/ For example a Patton 4141 JO and 4171 PRI unit possibly. They do provide combi-units but they are unsupported (no template).

I like to recommend Patton on all PSTN projects however there maybe a chance beroNet could provide you a box (they use modules) which is and FXO card and PRI card respectively (would give you a single box) but I guess it depends on your needs.

FYI: Cisco SPA devices are manual setup and not supported by 3CX.

 

[AWS2P]

therefore only one line, not multiple.

Even they are unsupported SPAs work fine , so IMO for only one line this is a technically and economically valid choice. Of course manual setup and no support by 3CX, but have this working until 5 years on several customers, and never got any problem

 

[leejor]

Also; during the provision of FXO device in 3CX; we need enter the main trunk number, I believe this is the regular phone number assigned to the line but do I need to enter any long distance prefix there, for example; if the number is (416) 123-4567 where the 416 is the area code and the rest 7 digits is the local number, should I just enter 4161234567 in the main trunk number field, or I have to enter 14161234567, where digit "1" is the long distance call prefix.

As far as I recall, this is for your reference only, to identify the trunk, and not used for any call routing. If the number is put into the gateway itself, depending on the field, of course, then that may be the number sent to 3CX as a DID number. If that is the case, then it is up to you how you format it. If it is used in DID rules then you must match the number in the gateway, with that of the rule you wish it to use.

 

[cobaltit]

Hi;

I am planning to implement the 3CX for my company soon, and we are using PRI and the Analog (legacy phone line from Telco), the analog line is for backup purpose, in the event of PRI failure, we can still dial out through analog line for emergency call, such as 911.

Here is my question #1, my understanding is that in order to use the 3CX with analog line, I need FXO type gateway, is it correct? The FXO port on the device will be connected to our phone jack with regular phone cord, RJ12 and the LAN port on FXO device is connecting to my LAN

This implementation has been a long time coming. It seems you may have forgotten your original post where all this was covered:

https://www.3cx.com/community/threads/can-i-use-analog-line-on-3cx-as-a-backup.60231/

Question #2, what will be the inbound rule looks like if the phone number provided by Telco is 10 digits, such as 416-123-4567, and we accept any call from any number to this 416 number, no matter it is long distance or local calls. I read the setup doc but I am new to 3CX, so I need more information.

Are you still talking about the backup analog line? If so, you don't want an inbound rule since you said this was just for outbound.