Page 2 of 3 FirstFirst 123 LastLast
Results 11 to 20 of 21

Thread: Music on Hold question

  1. #11
    Quadro Architect
    Join Date
    Jun 2006
    Location
    Around myself
    Posts
    2,075

    Default

    So what do you hear when your phone at that extension is put on hold? Is it just silence, or something else?

    Did you check if the VLC is really sending RTP packets with PCMU/PCMU as a payload? You can look at the traffic using Ethereal/Wireshark...

  2. #12

    Default

    Hi David there is silence on the handset. I will run a trace using wireshark to check the RTP packets. Thanks Brad

  3. #13
    Quadro Architect
    Join Date
    Jun 2006
    Location
    Around myself
    Posts
    2,075

    Default

    Today I have spent several hours trying to make latest VLC 0.9.9 to stream RTP in PCMU format from any source, and it turns out that this is still not correctly supported in that tool. This tool cannot correctly transcode/resample/downmix the input stream to PCMU, 8KHz, mono. So you have to give it exactly <PCMU, 8KHz, mono> audio file so it can stream that.

    Except that, even if you stream from <PCMU, 8KHz, mono> source file the RTP stream sent by VLC seems to be incorrect (containing duplicated frames and wrong), so the resulting audio stream is "cracky" - hardly understandable... This is true at least in version 0.9.9...

    Generally speaking, I don't have a good impression of that tool - it looks very promicing and offers great variety of features, but as soon as you try to use that for anything other than standard audio/video playback on PC, you face problems, bugs, limitations etc etc. Looks like this is a tool for developer, not for user.. At least that is my personal impression.
    Hopefully they can/will fix those misbehaviours, as for now I am not aware of other tool with such feature-set. If somebody knows, please tell me (something which can stream RTP from a file/internet radio/mic source)..

    EMS supports very-very small part of VLC functionality, but at least it works

  4. #14

    Unhappy

    Hello !

    From VLC support forum :

    Question : Does VLC have support of ulaw/alaw with static payload type ?

    Answer : VLC can transcode to PCMU/PCMA from any audio codec. What VLC cannot do (properly) is resampling and downmixing. In other words, it will work with any 8kHz mono input (but not necessarily G.711).

    by Rémi Denis-Courmont on Thu Apr 02, 2009 4:35 pm

  5. #15
    Quadro Architect
    Join Date
    Jun 2006
    Location
    Around myself
    Posts
    2,075

    Default

    Quote Originally Posted by Narval View Post
    Hello !

    From VLC support forum :

    Question : Does VLC have support of ulaw/alaw with static payload type ?

    Answer : VLC can transcode to PCMU/PCMA from any audio codec. What VLC cannot do (properly) is resampling and downmixing. In other words, it will work with any 8kHz mono input (but not necessarily G.711).

    by Rémi Denis-Courmont on Thu Apr 02, 2009 4:35 pm
    Exactly! But I guess, this is not the only problem preventing it to work with RTP. I suppose there are bugs too. They had a new version recently (version 1.0.0 at last ), but I didn't test that yet..

  6. #16
    Senior Member
    Join Date
    Oct 2006
    Location
    HORNSBY, NSW, Australia
    Posts
    122

    Default

    Quote Originally Posted by davrays View Post
    BTW, with Quadro having the RTP streaming solution (available now in 5.1 versions) you will not only have the ability to sending MOH from external source. You will get new ability, which I guess, cannot be achieved solely by the capabilities of Snom phones .

    Namely - you can now stream the call queue message from an external source.
    You would need to select the "Alternative Call Queuing" mode to be able to use this.. (activated from a hidden page).
    This ability is not advertised or even documented, but can be used...

    Just an additional thought

    Best regards,
    David
    Hey David, this sounds exactly like what I need to do for a client with a Quadro 2xi:- what is this hidden page so I can try call queuing message from a streaming source.

  7. #17
    Quadro Architect
    Join Date
    Jun 2006
    Location
    Around myself
    Posts
    2,075

    Default

    The name of that hidden page is "extmanagement.cgi". Enable the "Use alternative call queueing mode" for your extension, then enjoy new parameters at "User Management"->"Edit Entry"->"Call Queue Settings"

  8. #18
    Senior Member
    Join Date
    Oct 2006
    Location
    HORNSBY, NSW, Australia
    Posts
    122

    Default

    Thanks David,

    I found the page, but you get more parameters at:
    Users
    Extensions Management
    Click on tick box next to extension number
    Edit
    Call Queue Settings

    Directly it is:
    usermgmtcallqueuesettings.cgi
    Last edited by darylp; 02-07-2010 at 04:27 AM. Reason: Clarification

  9. #19
    Senior Member
    Join Date
    Oct 2006
    Location
    HORNSBY, NSW, Australia
    Posts
    122

    Default

    Using:
    usermgmtcallqueuesettings.cgi

    Have successfully implemented streaming music on hold for call queueing with a 2xi.
    Using Epygi Music Streamer, (EMS), to play a client promotional mp3.

    Works beautifully, customer is happy to now pay!

    Streaming music on hold is an important feature which has been available on lesser analog PABXes for a long time.

    Epygi now need to sponsor development of VLC so it can transcode mp3 to g711u RTP.

    With VLC transcoding bugs fixed, music on hold could be an Internet radio station.
    Currently, you cannot stream an Internet radio station as no station streams as RTP g711u.

  10. #20
    Quadro Architect
    Join Date
    Jun 2006
    Location
    Around myself
    Posts
    2,075

    Default

    Do you think streaming Internet Radio station as Call Queue message or Hold Music is practical?

    I had an idea in mind to allow to listen streaming channels from the phone by dialing some service code like *95<two-digit station number>. That could allow somebody to just sit at their desk, press a speakerphone button, and listen to a radio. But even this seems not very practical to me...

    Also note that broadcasting the radio stations is not always allowed.

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Similar Threads

  1. Hold Music query
    By currant in forum Troubleshooting and Problems
    Replies: 3
    Last Post: 02-25-2009, 12:29 AM
  2. Music on hold activation
    By lambsons in forum 'How Do I' Questions
    Replies: 1
    Last Post: 08-13-2008, 06:01 AM
  3. Hold music echoing
    By alfredp in forum Troubleshooting and Problems
    Replies: 2
    Last Post: 08-24-2007, 07:24 AM
  4. on hold music
    By narellanvic in forum Troubleshooting and Problems
    Replies: 1
    Last Post: 04-22-2007, 05:19 PM
  5. On hold music
    By etolentino in forum Troubleshooting and Problems
    Replies: 4
    Last Post: 04-11-2007, 10:27 PM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •