I wasn’t sure what to do about “uLaw compression” or “Raw PCM”, But I figured it probably wasn’t going to be extremely hard.
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Half an hour later, I had two free applications: wavetools, “a library consisting of 8 programs for manipulating mono WAV files” that let me resample the file to 8000 Hz and cut it to 16080 samples (the maximum length), and AFsp, which then converted it to a raw PCM. The first ringtone only plays the Cisco VoIP phone ringing once. When all was said and done, I had my ringtone in the right format. The second ringtone plays the Cisco VoIP ringtone twice, and the third one plays the ringtone 4 times.
I only hoped that it still sounded right. The next step was less technological and more political, and I wasn’t kidding myself into thinking it would be easy. The Cisco IP phones use a centralized server to get their configuration information, firmware, and (apparently) ringtones. I sent an email to Paul the phone guy, asking him if it would be a big deal. As I expected, he referred me to a middle-manager, but luckily I knew him pretty well. I asked him if it would be possible, and at first he seemed receptive, but he started to realize that it might be setting a bad precedent. I could only imagine how many people would want to have their own ringtones on there, and chances are they wouldn’t have the skills to convert it to the exactly right format. I was concerned that this was the end of my 24 ringtone story. I emailed the PCM and the link to the author of the original page, telling him that it was untested but that I was confident it was right. The next morning, in the shower (as if you doubted it), I realized: the phones just use TFTP to get all of the stuff from the server. TFTP servers are, well, trivial to set up. The hard part was telling the phone to use a TFTP server other than the one that it was told to use: In fact, I know of at least one of our servers at work that’s currently running a TFTP daemon. Go to Settings -> Network Configuration.Nothing will happen, but you’ve just made the settings editable. Set it to “Yes” by hitting the appropriate soft button. Go back up to the “TFTP Server 1” setting (#8 on my phone), and hit the “Edit” soft button.We’ll need it later, and you should probably store it in a safe place, just in case something dies sometime down the road. Now, it was just a matter of figuring out what files I needed to get from the old TFTP server. I started my new server with verbosity turned way up, and rebooted the phone (well, I unplugged it and plugged it back in). When the phone requested files, I saw them in the log.
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I then used a TFTP client program to download them from the old server. I modified the RingList.xml and added my raw PCM to the directory, and rebooted my phone again. When it came up, the ring was on the phone and looked and sounded just like any other ring.Today we talk about a scenario for you UCCX, which implements the ability to send the ringback tone to the caller when the call is sent to the agent, and the agent's phone rings. The problem is that when a call is sent to an agent, in fact, CUCM performs a call transfer, and therefore the caller is put on hold (it is done by CUCM). That's why the caller hears Music On Hold (MOH), that is natural.
But very often customers do not like it, and they want to hear a ringback tone instead of MOH.
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How to play a ringback tone during the call to the agent will be discussed in this post.īecause changing the algorithm of sending the call to the agent (ie, the fact of transfer) is not possible in CUCM/UCCX, then in order to solve the problem we will substitute the existing MOH file with the MOH file playing ringback. The name of the file is ringback.wav and we will use it in our example. It should be noted that you can play any other message (wav-file), such as "Call is sent to the agent.", instead of the file with ringback. So, at the first stage, we need to download and configure the MOH file with ringback tone in our CUCM.
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