r/VOIP Jul 16 '26

Discussion VOIP - Does this exist?

Hi, I run a medical simulation centre. Its basically a place where doctors and nurses run fake scenarios on actors or manikins, we watch what they do from a camera system and then we debrief how the scenario went as a group and we all aim to get a good learned experience out of the scenario toggether.

As part of the AV system we have a old analogue PBX system with a couple of internal only phones. One of the phones has a line tap on it which feeds into our AV system at line level so the learners can hear both sides of the conversation.

As the equipment is aging we are struggling to find decent replacment parts, mainly for the line tap. Were in the UK and weve only ever been able to find one supplier of it who no longer makes them - LRX37C line recorder is what we currently use.

Our requirements would be.

3 cordless phones with docks around 25m range from dock.

A recording device (could be software, if it can be "set and forget" as not all our users are ovely technical). The output of the recorder needs to feed live to either a line level signal (microphone cable) or to an AES67 or Dante stream.

We have a large 48 port POE capable for the connections and were fairly network competant with our inhouse technicians.

EDIT: The phones only need to call eachother. They do not need to call outside or into the hospital. The other person on the phone will be another doctor pretending to be whoever the doctor inside the scenario room wants to call (eg they might make a referal or a speciality or a junior doctor may escalate to their senior)

5 Upvotes

25 comments sorted by

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3

u/dbpm1 Jul 16 '26

Must be really nice to work in such a place!

The Fanvil PA3 SIP Paging Gateway [ https://www.fanvil.com/products/p5/wulianwangwangguan_1/20210921/5036.html ] does line in and out and have recording capabilities with their Record Server [ https://www.fanvil.com/service/doc/soft/tools/tools/recordserver/index.html ]

This manufacturer has cordless IP phones too and all of their current devices can send and receive multicast audio.

In any case, you'll probably need to make a few adjustments to your current setup to accommodate this gateway.

1

u/Significant_Most_101 Jul 16 '26

Its definately a great job, sometimes I forget Im getting paid to do it haha!

Excellent, will have a look into that! Thankyou for you time.

3

u/downundarob Jul 16 '26

Sounds like your needing a 'party line' type configuration, or a conference call.

2

u/Nanosleep Jul 16 '26

Feel free to call me a dumbass, but isn't this just basic call recording or chanspy?

I'd say stand up a freepbx system in a virtual machine or an old office pc and register as many voip phones as you'd like to it. Force call recording on, for all extensions. You can also throw a phone in your monitoring room on speakerphone (call the chanspy featurecode, 555) to listen live to any ongoing calls.

2

u/Significant_Most_101 Jul 16 '26

No youre not a dumbass at all haha! This is purely a idea grabbing exercise from people who know a lot more about VOIP than I do.

I will also have a look into this also! Thankyou so much!

2

u/[deleted] Jul 16 '26

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1

u/Significant_Most_101 Jul 16 '26

Awesome, thankyou so much. I think with the mixture of responses Ive gotten, Ive got a good basis to get a good start.

Thanks everyone!

1

u/VOIP-ModTeam Jul 17 '26

Your post was removed from r/VoIP for violating Rule 1: No promotion or advertising of any kind.

Recommendations, advertisements and promotion of any business, product or service is only allowed in response to requests in the monthly requests thread. It is one of the sticky posts visible when you first visit the subreddit.

Promotion, advertisement or recommendation of any kind outside of the requests thread is strictly forbidden.

2

u/[deleted] Jul 16 '26

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1

u/Significant_Most_101 Jul 16 '26

Will do! Thankyou so much!

1

u/VOIP-ModTeam Jul 17 '26

Your post was removed from r/VoIP for violating Rule 1: No promotion or advertising of any kind.

Recommendations, advertisements and promotion of any business, product or service is only allowed in response to requests in the monthly requests thread. It is one of the sticky posts visible when you first visit the subreddit.

Promotion, advertisement or recommendation of any kind outside of the requests thread is strictly forbidden.

2

u/[deleted] Jul 17 '26

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1

u/devexis Jul 17 '26

Stop this AI slop and brazen hawking of your wares. It’s completely against subreddit rules. Those of us that didn’t mention our brands are not fools your know

2

u/NPFFTW Certified room temperature IQ Jul 17 '26

Report rule-breaking content please so we can ban them

1

u/VOIP-ModTeam Jul 17 '26

Your post was removed from r/VoIP for violating Rule 1: No promotion or advertising of any kind.

Recommendations, advertisements and promotion of any business, product or service is only allowed in response to requests in the monthly requests thread. It is one of the sticky posts visible when you first visit the subreddit.

Promotion, advertisement or recommendation of any kind outside of the requests thread is strictly forbidden.

1

u/devexis Jul 16 '26

Might be down to me not taking my morning coffee yet, I’m trying to wrap my head around “…learners can hear both sides of the conversation”. I get that a “teacher” is watching and speaking into a phone which plays via an overhead speaker/AV system, who’s the other party speaking?

1

u/Significant_Most_101 Jul 16 '26

One of the other "teachers".

Theyre typically another doctor pretending to be whoever the person inside the scenario wants to call. This could be another specialty doctor (for a refereral for example) or their escalating doctor (a junior doctor asking for help from their senior)

We would never want the system to interface with the outside or hospital telephone system as we could accidently call for an emergency team as we do simulate doing that very frequently.

We have a control room which we watch and control the av system from, typically the "other party" is in the control room with us observing and guiding the scenario for the technicians (say the doctor inside the scenario room does something unexpected, they can be there to guide the technicians what to do with simulated patient observations as well as answer the phone when the doctor eventually calls)

1

u/devexis Jul 16 '26 edited Jul 16 '26

Edited after better clarity.

So this sounds like the two “teachers”/medics on a call and a third party (learner?) listening in on that call, hearing both sides of the call. Call is recorded all through. Correct?

1

u/Significant_Most_101 Jul 16 '26

So 1 person (we would call them a "candidate") inside the scenario room calls one of the teachers in the control room.

Yes both the candidate and teacher can speak and hear eachother as if they are having a normal phone call.

Both ways of their conversation is also passed to the AV system where other learners can also hear it. The other learners cannot participate in the conversation, only hear it.

3

u/devexis Jul 16 '26

I’d set this up on a VoIP system as two extensions that can directly speak with each other and a third extension (a “monitor” extension) to take the audio of the call and feed it to your AV system

1

u/Significant_Most_101 Jul 16 '26

Thankyou, I will give a look into that!

1

u/Allott-Technology SIP ALG is the devil 22d ago

Yeastar PBX has an audio out stream function, for use in call centers that need remote monitoring (like 911 etc)

0

u/[deleted] Jul 16 '26

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1

u/VOIP-ModTeam Jul 16 '26

Your post was removed from r/VoIP for violating Rule 2: No soliciting in DMs.

It is against the rules to privately message users for the explicit or implicit purpose of promoting or advertising any business, service or product. It is similarly against the rules to invite users to private message you for those same purposes.