r/3CX

▲ 0 r/3CX

How to keep my 3CX extension busy / in-use by calling myself? (Beginner)

Hi everyone,

I really dislike my current job and can’t leave it right now for personal/financial reasons. My goal is to keep my work phone extension busy as much as possible so I get fewer incoming calls.

I’m using 3CX but I’m not very technical with VoIP systems. I’m hoping someone can explain it in a simple, step-by-step way for a beginner.

What I want to achieve:

  • Make my extension show as “In Use” or “Busy” for long periods
  • Call my own extension from other numbers

What I’m considering (but don’t know how to implement):

  • Using additional phone numbers or services to call my own 3CX extension
  • Setting up a second trunk or extra extension
  • Some kind of automatic or looping call to myself

Questions:

  1. Has anyone done something similar with 3CX to keep an extension busy?
  2. What’s the easiest way for a beginner to do this?
  3. Are there any good services for getting extra numbers to call myself?
  4. What are the risks I should be aware of (with my provider or 3CX)?
  5. Is there a simpler way to mark the line as busy without using too many minutes?

I’d really appreciate clear, beginner-friendly advice. Thanks in advance!

reddit.com
u/Designer-Clothes-196 — 5 days ago
▲ 1 r/3CX

Known compatible Australian provider for TLS/SRTP with 3CX

As the title implying, I've tried a few providers but so far none have had compatible TLS and SRTP support with 3CX. I thought Twillio might since it's a preferred partner but it does not.

Does anyone have a known compatible provider for SIP trunks, or is it time to look at an alternative?

reddit.com
u/winklevos — 7 days ago
▲ 2 r/3CX+1 crossposts

3CX dial codes not working

Hello

We have a requirement to see if we can pass through 3CX dial codes (*83 and *84 particularly). Using yealink handsets, pressing the transfer button works fine, but if we put a complete code in eg. *83#1234# to warm transfer a call, nothing connects. It doesn't even hit the 3CX event or app log. Any ideas? I've looked at a few 'google' replies and some 3CX info but nothing seems to fix it. T33G is the handset. Scenario is external caller calling in, then person called needs to transfer call to another person. Could it also be perhaps not enough available lines?

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u/ShelterPositive — 7 days ago
▲ 1 r/3CX

3CX Queue Distribution mess with multi-language setup

Hello!

I’m running into a persistent issue with call distribution in queues. This is our setup (we are a travel company)

  • We use multiple queues (by language: e.g. EN / DE / IT).
  • Some agents are assigned to multiple queues simultaneously (because they speak multiple languages)
  • Agents are logged in, available and active in assigned queues

Expected behaviour:
=> Fair distribution (e.g. longest idle / round robin logic) => per agent

Actual behaviour:
=> Mess as calls are not distributed fairly & same agent gets consecutive calls even though others are available and idle longer.

BTW: This is not bc Agents are not logged, “not registered” or PC sleeps. This is the first thing I checked.

Does anyone know how does 3CX actually handle agents assigned to multiple queues?
Is “longest idle” evaluated per queue or globally across all queues?

And if you: Is there a way to write a script or similar (sorry first touchpoint with 3CX)

Thanks a lot!

reddit.com
u/lioninside — 7 days ago
▲ 6 r/3CX+1 crossposts

[3CX] iOS app sometimes shows PBX name instead of caller's number – inconsistent caller ID behavior

Hey everyone,

I'm experiencing an inconsistent caller ID issue with the 3CX iOS app and I'm hoping someone here has run into this before.

The problem:

When I receive incoming calls, the iOS app sometimes displays the correct caller's number, but other times it only shows the PBX/trunk name instead. The behavior seems random — same setup, same trunk, but different results depending on the call.

What I've already tried:

I went into Trunk → Options and configured the caller ID fields:

- **Remote Party ID** → set to `CallerNum`

- **P-Asserted Identity** → set to `CallerNum`

Despite these changes, the issue persists intermittently.

Environment:

- 3CX (cloud hosted)

- iOS app (Version 5.5 Build 148 - 20.0.20.148)

- SIP trunk (orchestra/eutelia voip)

Questions:

- Has anyone else seen this inconsistency where caller ID works correctly on some calls but not others?

- Could this be a SIP header issue coming from the provider side, where some calls don't include the expected headers?

- Are there any other trunk or inbound rule settings I should be looking at?

Any help or pointers would be greatly appreciated. Thanks!

https://preview.redd.it/qstenfsbza1h1.jpg?width=972&format=pjpg&auto=webp&s=5d265ca7a032d5a7ad70813a8c3ac3dc13ce85fc

https://preview.redd.it/y0zfja3gza1h1.jpg?width=1206&format=pjpg&auto=webp&s=43456b90a4586743587a723e5443d6a1f4709b14

reddit.com
u/ferdytao — 7 days ago
▲ 3 r/3CX

3CX License Question

client has 6 staff & 6 IP Phones - what plan is best suited for this? Given that 3CX SMB is winding down, and basic free does not support ip phones, is the only choice a 8SC Basic plan for $300 per year?

reddit.com
u/whereisbenny — 9 days ago
▲ 0 r/3CX

3CX SBC Mémoire saturée

Bonjour,

Nous avons une vingtaine de clients impactés par des perturbations sur leurs appels téléphoniques, (coupures, grésillements...). Et quand nous regardons les performances du SBC cela est autour de 96%, ce qui est énorme. Le fichier qui prend 91% de la RAM est le 3cxsbc. Evidemment avec cette utilisation, l'accès à distance est impossible.

Nous avons trouvé une solution qui a l'air de tenir pour la plupart. Sur le routeur nous avons désactivé l'ouverture de port en 5060 pour le SBC, car de toute façon rien n'est filtré en sortie et il n'a besoin que du 5060 pour la sortie. Et ensuite, demander au client de redémarrer l'équipement SBC. Ensuite, le SBC ne remontra plus autant en utilisation de la mémoire.

Nous pensons peut-être à des robots qui font des requêtes sans suite et donc le SBC répond sans avoir de réponse et attend sans fin.

Cordialement

reddit.com
u/Imaginary_Cookie_957 — 10 days ago
▲ 1 r/3CX

Getting wallboard data for custom dashboard?

We have been using Jed-ware for a few years and it has been great. We like the reporting and the wallboard. However...we need to consolidate to a SINGLE TV screen to show service desk AND call metrics (User status in a queue, calls waiting, wait time, and call volume) as on one wallboard.

I see "Data Connectors" allows me to get the CDR data to sync to my own database, so I can get the call details just fine. But for the stuff that Jed-ware shows us I assume that requires the Call Control API?
Is this doable? I hate having to do all the work to re-invent this, but I am not sure there is another way.

reddit.com
u/Hey_this_guy_here — 11 days ago
▲ 1 r/3CX

Can't seem to register T48S into pbc

I have just taken a over a small install with 6 T48S phone & 3cx cloud hosted. Everything works fine "as is" except I can't seem to be able to add another phone into the setup.

There is NO sbc - direct connect (I know this is not recommended setup but it has worked for them for the past 4 years from v18 to current v20u8).

The phone has lattest firmware, factory reset. I gets the provisioning info from the PBX (On the 3cx side I get Provisioning file for MAC 805EC0A**** of user 859 requested by 85.*.*.* was successfully generated and the various account fields are populated correctly in the web interface) but it never registers - on the phone side it alternates between "registering" and "registration failed". I can't seem to find more logging as of what is failing on either side (might welcome advices as of what to enable).

Any help most welcome - muss be a pretty easy one...

reddit.com
u/alextakacs — 11 days ago
▲ 3 r/3CX

3CX High Availability deprecated? help or options please

Location has 30 T23G's and not looking to replace with router phones.

I was attempting to set up 2 new identical Dell Mini's for use in a SBC High Availability Cluster (HA) to remove the single point of failure of the current SBC.

Question, what is everyone doing for redundancy, without deploying new router phones.

Here is the link to the instructions I was following:

https://www.3cx.com/docs/sbc-high-availability-cluster/

I tried to start the HA installation portion: (sudo bash -c "$(wget -qO- http://downloads-global.3cx.com/downloads/sbccluster/3cxsbc.zip)")

I wasn't able to get it to start, and used copilot to help figure out the issue.

According to copilot, HA was deprecated in 2023 and the download no longer contains the installer, and copilot instead suggests two other methods.

Is copilot correct? no more HA?

Below are the 2 methods suggested.

Method 1: DNS failover

Remote phones → sbc.company.com→ DNS → Active SBC

If the primary SBC dies:

  • DNS health check fails
  • DNS automatically switches the hostname to the secondary SBC
  • Phones re-register to the new IP

Cons

  • Not instant (30–90 seconds)
  • Phones must re-register

Method 2: Dual SBC Provisioning -

Phones can be provisioned with two SBC addresses:

  • Primary SBC
  • Secondary SBC

If the primary fails, the phone automatically tries the secondary.

How it works

  • Configure two SBCs in 3CX
  • Provision phones with both
  • Phones fail over automatically

Pros

  • No DNS required
  • Fast failover (phone-driven)
  • Works even if DNS is down

Cons

  • Not all phone models support dual SBC entries
  • Must be configured in provisioning templates
  • Still no shared state between SBCs

thanks in advance for any responses.

u/Yes-WeCanDoThat — 13 days ago
▲ 2 r/3CX

Get more details when Hosted 3cx goes down?

New to Hosted 3cx, but it seems like the service stops and restarts more often than I would like.

Is there anyway to get more details about these service restarts?

I assuming they are Linux updates running in the background? Or is the 3cx software tripping out?

reddit.com
u/f909 — 12 days ago
▲ 2 r/3CX

Hi All,

I have a customer with a load of fanvil x210-v2 phones. There is one user that has a strange issue - despite all users having:

Default Ringtone: Default
Queue Ringtone: Ring 2

One user in particular has a different ringtone when his phone rings with a queue call. I've defaulted the phone and reprovisioned it, and put the latest fw on, and it makes no difference. Any ideas please?

TIA!

reddit.com
u/ac1977 — 14 days ago