# Integrating a VIDEO RBT Service **URL:** \ **Category:** Asterisk Support\ **Created:** [June 11, 2023, 10:22am UTC](https://community.asterisk.org/t/integrating-a-video-rbt-service/97292 "2023-06-11T10:22:30Z")\ **Posts on this page:** 15\ **Page:** 1
**Author:** ![ray716](https://avatars.discourse-cdn.com/v4/letter/r/439d5e/32.png) [@ray716](https://community.asterisk.org/u/ray716)\ **Post date:** [June 11, 2023, 10:22am UTC](https://community.asterisk.org/t/integrating-a-video-rbt-service/97292/1 "2023-06-11T10:22:30Z")
I am currently working on involving video Ring Back Tone (RBT) in Asterisk. Although I am still relatively new to Asterisk, I have been assigned to this project and would greatly appreciate your expertise in helping me navigate through the implementation process. To provide some context, the project involves the following functionality: 1. Caller A initiates a call to Caller B as a standard audio call. 2. Caller B is assigned a personalized video as their Ring Back Tone. 3. Caller A is able to watch the video until Caller B decides to answer the call. After conducting some initial research on Asterisk and its support for video codecs, I have come to understand that Asterisk alone may not be capable of achieving this functionality. I attempted to integrate NGINX for video streaming purposes, but unfortunately, I did not achieve the desired outcome. My primary objective in reaching out to you is to determine if implementing this feature is feasible using Asterisk, or if I should explore alternative approaches instead. ---
**Author:** ![Pooh](https://avatars.discourse-cdn.com/v4/letter/p/f05b48/32.png) [@Pooh](https://community.asterisk.org/u/Pooh)\ **Post date:** [June 11, 2023, 10:57am UTC](https://community.asterisk.org/t/integrating-a-video-rbt-service/97292/2 "2023-06-11T10:57:43Z")
> I am currently working on involving video Ring Back Tone (RBT) in Asterisk. So, this sounds like a form of Early Media, but including video as well as (or instead of?) audio? > 1. Caller A initiates a call to Caller B as a standard audio call. Using what sort of equipment / client? > 1. Caller B is assigned a personalized video as their Ring Back Tone. What does “personalized video” mean (and what does the word “Tone” mean in this context)? > 1. Caller A is able to watch the video until Caller B decides to answer the > call. So, if Caller A is now expected to watch a video, why was the call originally placed as an audio call? Also, where is this video stream coming from, if not from B? Finally, what happens when B answers the call? Is this then a video call between A and B, or does it revert back to plain audio? If the latter, what was the purpose of the video? > After conducting some initial research on Asterisk and its support for > video codecs, I have come to understand that Asterisk alone may not be > capable of achieving this functionality. Asterisk is perfectly capable of supporting video calls, but it’s not clear to me where the source of the video stream is in this setup. I wouldn’t be surprised if, with appropriate manipulation of the SDP, Asterisk can tell A to expect a video stream from X, but as I say, it’s not clear to me where X is. Asterisk itself certainly will not generate a video stream for you - it can pass one through, but I won’t generate one. > I attempted to integrate NGINX for video streaming purposes, but > unfortunately, I did not achieve the desired outcome. It might help if you showed us (or at least explained in more detail) what you tried and whether the problem was with generating the video stream, or with getting Asterisk to forward it to A. Antony. ---
**Author:** ![ray716](https://avatars.discourse-cdn.com/v4/letter/r/439d5e/32.png) [@ray716](https://community.asterisk.org/u/ray716)\ **Post date:** [June 11, 2023, 11:11am UTC](https://community.asterisk.org/t/integrating-a-video-rbt-service/97292/3 "2023-06-11T11:11:12Z")
Hi, Thanks for the reply. Think of this project as a normal RBT service. When I initiate a call to someone, instead of hearing a tone (until they answer), I am being shown a video instead. > So, this sounds like a form of Early Media, but including video as well as (or > instead of?) audio? Yes, it includes audio and video as a way to entertain the caller until the call has been answered. > Using what sort of equipment / client? For the time being, I am using PortSIP for development. But the project will later on be integrated with a mobile operator and enable this feature with a mobile phone’s default dialer. (I understand that it might not work on all devices and it only works on LTE devices) > What does “personalized video” mean (and what does the word “Tone” mean in > this context)? A user can upload whatever video they prefer to our servers and set it as their default V-RBT to be played when someone is calling them. > So, if Caller A is now expected to watch a video, why was the call originally > placed as an audio call? Because in production, callers will be initiating the call with their default dialer and not with a custom mobile application. > Also, where is this video stream coming from, if not from B? This is the issue that i am trying to resolve. At first, I thought that asterisk would be fine with streaming video but after research found out that I need some other service to handle the streaming from which i went and tried with NGINX. > Finally, what happens when B answers the call? Is this then a video call > between A and B, or does it revert back to plain audio? If the latter, what > was the purpose of the video? The call gets answered and the video stops playing and it a normal audio call is set in place. ---
**Author:** ![Pooh](https://avatars.discourse-cdn.com/v4/letter/p/f05b48/32.png) [@Pooh](https://community.asterisk.org/u/Pooh)\ **Post date:** [June 11, 2023, 11:46am UTC](https://community.asterisk.org/t/integrating-a-video-rbt-service/97292/4 "2023-06-11T11:46:54Z")
> > So, this sounds like a form of Early Media, but including video as well > > as (or instead of?) audio? > > Yes, it includes audio and video as a way to entertain the caller until the > call has been answered. In that case, assuming the equipment being used by A is capable of supporting video, you “merely” need to get the source of the video inserted into the SDP which Asterisk sends to A. I’ve no idea whether Asterisk’s standard early media function includes video support, but if you’re prepared to fiddle with the source code, given that Asterisk supports early media, and also supports video, I wouldn’t expect it to be too hard to add this feature if it’s not already there. [How to get video preview?](https://community.asterisk.org/t/how-to-get-video-preview/92485) may help if you didn’t find it already. > For the time being, I am using PortSIP for development. But the project > will later on be integrated with a mobile operator and enable this feature > with a mobile phone’s default dialer. (I understand that it might not work > on all devices and it only works on LTE devices) You’ve gone way beyond my understanding of what a mobile phone (using standard calling, and not some extra app such as WhatsApp etc) could achieve. > A user can upload whatever video they prefer to our servers and set it as > their default V-RBT to be played when someone is calling them. Sounds quite undesirable for the caller, in my opinion. If I make a phone call, I want to talk to the person I’m calling. I don’t want to get some video played at me, which is presumably either advertising the services of the company the callee works for, or showing me what the callee’s cat has done recently. > Because in production, callers will be initiating the call with their > default dialer and not with a custom mobile application. I don’t know where in the world you are, and which mobile operator/s you’re dealing with, but do you really have a service where you can place a standard call using the native dialler on your mobile phone, and get video? I’ve never heard of this being possible. Antony. ---
**Author:** ![david551](https://avatars.discourse-cdn.com/v4/letter/d/3bc359/32.png) [@david551](https://community.asterisk.org/u/david551)\ **Post date:** [June 11, 2023, 12:26pm UTC](https://community.asterisk.org/t/integrating-a-video-rbt-service/97292/5 "2023-06-11T12:26:28Z")
> [@Pooh](#): > > In that case, assuming the equipment being used by A is capable of supporting > video, you “merely” need to get the source of the video inserted into the SDP > which Asterisk sends to A. I read it as Asterisk looks up the called number and plays back a recording, not that this is early media from B. Dial does not support video early media. ---
**Author:** ![Pooh](https://avatars.discourse-cdn.com/v4/letter/p/f05b48/32.png) [@Pooh](https://community.asterisk.org/u/Pooh)\ **Post date:** [June 11, 2023, 12:50pm UTC](https://community.asterisk.org/t/integrating-a-video-rbt-service/97292/6 "2023-06-11T12:50:44Z")
I agree, but how would you implement “play back a recording to A, until B answers, and then bridge B to A”? I’m still intrigued by the idea that a mobile phone on a standard network can support a video call in its native dialler. Have _you_ (david551) come across this anywhere? Antony. ---
**Author:** ![david551](https://avatars.discourse-cdn.com/v4/letter/d/3bc359/32.png) [@david551](https://community.asterisk.org/u/david551)\ **Post date:** [June 11, 2023, 1:47pm UTC](https://community.asterisk.org/t/integrating-a-video-rbt-service/97292/7 "2023-06-11T13:47:52Z")
As far as I know speech, short message and facsimile are the only teleservices supported by any mobile network as telephony, and video is only ever supported over their data services. However, I missed anything the OP said about using basic mobile phone services. [GSM 02.03 Version 5.1](https://www.etsi.org/deliver/etsi_gts/02/0203/05.01.00_60/gsmts_0203v050100p.pdf) ---
**Author:** ![Pooh](https://avatars.discourse-cdn.com/v4/letter/p/f05b48/32.png) [@Pooh](https://community.asterisk.org/u/Pooh)\ **Post date:** [June 11, 2023, 2:07pm UTC](https://community.asterisk.org/t/integrating-a-video-rbt-service/97292/8 "2023-06-11T14:07:52Z")
Thanks - that matches my understanding of what mobile network operators support. The comment from the OP which made me ask this was “in production, callers will be initiating the call with their default dialer and not with a custom mobile application.” Admittedly the OP also said “the project will later on be integrated with a mobile operator and enable this feature with a mobile phone’s default dialer” however I wasn’t quite sure how literally to interpret that, suggesting that some mobile network operator might start to support video via the native dialler… Antony. ---
**Author:** ![ray716](https://avatars.discourse-cdn.com/v4/letter/r/439d5e/32.png) [@ray716](https://community.asterisk.org/u/ray716)\ **Post date:** [June 11, 2023, 7:02pm UTC](https://community.asterisk.org/t/integrating-a-video-rbt-service/97292/9 "2023-06-11T19:02:48Z")
> suggesting that some mobile network operator might start to support video via the native > dialler Please refer to this youtube video: [https://www.youtube.com/watch?v=GRNzVGRU9Z8](https://www.youtube.com/watch?v=GRNzVGRU9Z8) It explains the project I was assigned to as it is exactly what I want to do. ---
**Author:** ![Pooh](https://avatars.discourse-cdn.com/v4/letter/p/f05b48/32.png) [@Pooh](https://community.asterisk.org/u/Pooh)\ **Post date:** [June 11, 2023, 8:48pm UTC](https://community.asterisk.org/t/integrating-a-video-rbt-service/97292/10 "2023-06-11T20:48:37Z")
“[Solutie Huawei Video RBT\* - YouTube](https://www.youtube.com/watch?v=GRNzVGRU9Z8)” Having watched that, I can only say that every single example is something that I would really not want as a caller. That entire presentation seems to be focused from the point of view either of the network provider (who stands to gain revenue from providing such a service whether the recipient wants it or not) or the content provider (who sees it as a marketing opportunity, which is more or less the same as “whether the recipient wants it or not”). How much market research has been done to find out whether _callers_ want this sort of thing? If someone is not available to take my call, I want either: a) a busy tone (simple, audio, “beep… beep… beep”, that’s it) b) an announcement “this person can’t take your call, please try later” c) voicemail “hi, thanks for calling… leave a message… beep…” Anything involving video is just irritating, a waste of my bandwidth, and not in the least bit productive to the call I was trying to make. It’s even worse than the companies who intersperse Music on Hold (which can be bad enough itself for callers) with promotional announcements about all the wonderful things they want to sell, when all the caller wants to hear is a person answering “hello, how can I help you?” If I want to watch kittens, I’ll look them up on Youtube. If I want a company promotional message, I’ll visit the website. If I want to know where you are and what you’re doing, I’m probably already using WhatApp (or something similar) and I know about it without calling you. If I want to talk to you, I don’t want a video unless it’s you answering my call and giving me a surprise that video works over GSM now. Maybe you’ll find a way of doing this with Asterisk, but I can only say as a phone user that I hope it doesn’t become mainstream. Antony. ---
**Author:** ![TheMark](https://sea1.discourse-cdn.com/asterisk/user_avatar/community.asterisk.org/themark/32/4771_2.png) [@TheMark](https://community.asterisk.org/u/TheMark)\ **Post date:** [June 12, 2023, 5:40pm UTC](https://community.asterisk.org/t/integrating-a-video-rbt-service/97292/11 "2023-06-12T17:40:28Z")
and I would prefeer d) SIP response code 4XX ---
**Author:** ![david551](https://avatars.discourse-cdn.com/v4/letter/d/3bc359/32.png) [@david551](https://community.asterisk.org/u/david551)\ **Post date:** [June 12, 2023, 8:04pm UTC](https://community.asterisk.org/t/integrating-a-video-rbt-service/97292/12 "2023-06-12T20:04:31Z")
Did you mean 1XX? Or are you say that the caller is defective in trying to call someone that would offer them a video “Ring Back Tone”? 4xx is (calling) client error. ---
**Author:** ![bkervaski](https://sea1.discourse-cdn.com/asterisk/user_avatar/community.asterisk.org/bkervaski/32/4091_2.png) [@bkervaski](https://community.asterisk.org/u/bkervaski)\ **Post date:** [June 12, 2023, 9:32pm UTC](https://community.asterisk.org/t/integrating-a-video-rbt-service/97292/13 "2023-06-12T21:32:10Z")
If the op controls the client software/app, it would be trivial to do outside of asterisk, i.e., when a SIP call is initiated, just play a pre-recorded video from a web service based on the phone number/extension dialed or perhaps even a SIP header or response code, and then just replace that video with the video from asterisk once the call is answered, etc. The possibilities are endless with this approach. ---
**Author:** ![TheMark](https://sea1.discourse-cdn.com/asterisk/user_avatar/community.asterisk.org/themark/32/4771_2.png) [@TheMark](https://community.asterisk.org/u/TheMark)\ **Post date:** [June 13, 2023, 5:26pm UTC](https://community.asterisk.org/t/integrating-a-video-rbt-service/97292/14 "2023-06-13T17:26:01Z")
well any [1-6]XX but I realy hate providers that will do an 183 “the user is busy please try later, repeat, repeat” and not just send me a 4XX as that make it hard to track down problem calls ---
**Author:** ![system](https://global.discourse-cdn.com/asterisk/original/2X/4/475d0c889911cfb84ac4881ad6df8b523e3f9105.png) [@system](https://community.asterisk.org/u/system)\ **Post date:** [July 13, 2023, 5:26pm UTC](https://community.asterisk.org/t/integrating-a-video-rbt-service/97292/15 "2023-07-13T17:26:45Z")
This topic was automatically closed 30 days after the last reply. New replies are no longer allowed.