In reply to a post by dlucas46:

But if I get a phone call on the landline which is connected to a Grandstream H813 ATA FXO port,
the caller ID displayed is that of the PJSIP trunk / extension (5000) instead of the Mobile or other landline number. This information does not seem to be being feed through to Freepbx and then onto the handset.

Zarjaz's point is that - at least in your narrative to us - you have not established that the CallerID is actually being sent on your PSTN line

In reply to a post by dlucas46:

Yes I get you point, but FreePBX wants the Trunk SIP name to match the Sip account on the ATA.
I am not sure I can change one or or the other and have them different if you get my meaning.

If it is set in one place and one place only, then what you say makes sense. But if it is set in 2 places, then the strength of the concept that the 2 must be the same is uncertain. Sometimes it is for no more than the convenience of the user documentation.

Sometimes it is helpful to disobey the instructions to find out where something is going awry, for the sake of learning something, rather than for the sake of a permanent setup.

I will check the PSTN lines caller ID directly by plugging in a phone directly to the line. If that handset gets the correct information, I will move on to the ATA, which is where I think the real problem probably is.

I will contact Grandstream support for the correct UK settings and see what they say.

In reply to a post by dlucas46:

I will check the PSTN lines caller ID directly by plugging in a phone directly to the line.

This is exactly what Zarjaz was saying, you need to first simplify and test before going all complicated with your setup.

Turn on the SUP logging on Freepbx or use wireshark to capture the SIP Invite arriving from the Grandstream and then see whether you can find the CLID number you are looking for. If it is no there, then the problem is in the Grandstream, otherwise you need to change the dialplan to pull out the correct field

In reply to a post by dlucas46:

In Freepbx I have defined an incoming trunk. This is a PJSip extension with the number 5000.

On the Grandstream HTA the FXO port sip user is 5000 and pointed at Freepbx by IP address.
I have also used an option called Unconditional forward.

The Handsets I have are Analogue units on another H814 ATA , They are displaying internal caller ID correctly.

But if I get a phone call on the landline which is connected to a Grandstream H813 ATA FXO port,
the caller ID displayed is that of the PJSIP trunk / extension (5000) instead of the Mobile or other landline number. This information does not seem to be being feed through to Freepbx and then onto the handset.

Ah … that’s me out. Apologies for being unable to help.

In connectivity - DAHDI config - analog hardware - global settings, make sure you have the following:

Other Global Dahdi Settings:

rxwink = 300

signalling = fxs_ks

context = from-pstn

sendcalleridafter = 1

hidecallerid = No

callwaitingcallerid = yes

callerid = asreceived

ukcallerid = yes

cidsignalling = v23

cidstart = polarity

Is that in Freepbx?

If so Freepbx 17 does not seem to have same menu.

All I have is DAHDI Channel DIDs

It is FreePBX but mine is an earlier version. I remember I had the exact issue with no CID showing when I set it up years ago, and adding all those settings sorted it out. Not sure where it might be in version 17 unfortunately.