Softphones - complaints



  • Like many here, we've recently deployed remote access, especially phones, to users to use from home.

    In my case I setup a FreePBX in Vultr, hosted in Chicago.
    FreePBX version 15.0.16.44
    Asterisk version 16.9.0

    I've deployed LinPhone to Android users (it stays registered with nothing special being done) and Zoiper on iPhones for the push service (which even though the push service stays registered, the phones still fall off and frequently don't get calls - but I'm not here for Zoiper right now).

    Several of my users are having call quality issues on LinPhone, dropped calls, bad sound, etc.

    Linphone is exclusively installed on user's Android phones - this means that all connections are either WiFi or Cellular data. In some cases, moving to cellular data has solved their issue - crappy wifi at home I guess, but not in all.

    I read another post here on ML that was saying WiFi is bad on SIP traffic - is that still true?
    Should I be on a specific codec?

    Here is my current FreePBX setup for codex
    1941ca4f-3229-466f-8732-ad3c6bea6ace-image.png

    Should I change this?

    The previous thread I mentioned spoke about G722, which I've noticed is enabled on FreePBX, but is not enabled by default on LinPhone - should I enable it? Should I move G722 up the list order on FreePBX?
    Should I use some other codec?

    Thanks in advance.



  • I have not done this but something to consider is that there is a huge quality difference in Android phones. It's possibe this is causing you issues if your users have cheaper phones.



  • @Dashrender said in Softphones - complaints:

    I read another post here on ML that was saying WiFi is bad on SIP traffic - is that still true?

    That has never been true. WiFi is simply a nework connection. Poorly designed WiFi causes issues for everything. Just Voice services are more easily able to detect it since they rely on a live stream of UDP flowing at a smooth rate.



  • Could be that their home internet is shite and saturated. Both, on their WLAN and the ISP side.



  • @jmoore said in Softphones - complaints:

    I have not done this but something to consider is that there is a huge quality difference in Android phones. It's possibe this is causing you issues if your users have cheaper phones.

    OK that's an interesting point. They are all Samsung phones, but I'm sure some of them are super cheap Samsung phones, not flagships.

    I also want to mention that I had one user on an iPhone 5 with Cox's OMG Panarama WiFi (crap), setup on Zoiper, and she dropped calls worse than anyone else... I really think her OLD ASS phone was the root of her issue. I replaced her setup with a physical phone (one of two I actually own) and her problems vanished. Of course I changed two things for her - 1) got off her old ass phone 2) moved from WiFi to wired connection.



  • @Dashrender said in Softphones - complaints:

    Should I change this?

    Yes.
    This is the default order I use.
    9fdc1e91-3b19-4327-bcf3-2546b4fb39dc-image.png



  • @Dashrender said in Softphones - complaints:

    The previous thread I mentioned spoke about G722, which I've noticed is enabled on FreePBX, but is not enabled by default on LinPhone - should I enable it? Should I move G722 up the list order on FreePBX?
    Should I use some other codec?

    If you are having quality problems, no. Stick to ulawonly. G722 takes more bandwidth as it is a high def codec.

    Also, opus may help you if Linphone supports it as it was designed for more flexible network speeds.



  • @wrx7m said in Softphones - complaints:

    Could be that their home internet is shite and saturated. Both, on their WLAN and the ISP side.

    This is also a real concern now. I have a great home network and WiFi setup.

    But randomly, my calls are simply shit anymore.

    Why? Because everyone is home. It is filling up the ISP pipe to the various nodes.



  • @JaredBusch said in Softphones - complaints:

    But randomly, my calls are simply shit anymore.

    Not just my calls on my deskphone, but also my T-Mobile WiFi calling.



  • @JaredBusch said in Softphones - complaints:

    @Dashrender said in Softphones - complaints:

    The previous thread I mentioned spoke about G722, which I've noticed is enabled on FreePBX, but is not enabled by default on LinPhone - should I enable it? Should I move G722 up the list order on FreePBX?
    Should I use some other codec?

    If you are having quality problems, no. Stick to ulawonly. G722 takes more bandwidth as it is a high def codec.

    Also, opus may help you if Linphone supports it as it was designed for more flexible network speeds.

    1a8e7194-0def-4cef-8916-727c27087b0b-image.png

    Opus is on LinPhone and enabled by default.



  • @JaredBusch said in Softphones - complaints:

    @wrx7m said in Softphones - complaints:

    Could be that their home internet is shite and saturated. Both, on their WLAN and the ISP side.

    This is also a real concern now. I have a great home network and WiFi setup.

    But randomly, my calls are simply shit anymore.

    Why? Because everyone is home. It is filling up the ISP pipe to the various nodes.

    yeah, I definitely know this to be true.. nothing we can do about this.. but troubleshooting to that point is something I still need to do.. Thanks!



  • @Dashrender said in Softphones - complaints:

    @JaredBusch said in Softphones - complaints:

    @Dashrender said in Softphones - complaints:

    The previous thread I mentioned spoke about G722, which I've noticed is enabled on FreePBX, but is not enabled by default on LinPhone - should I enable it? Should I move G722 up the list order on FreePBX?
    Should I use some other codec?

    If you are having quality problems, no. Stick to ulawonly. G722 takes more bandwidth as it is a high def codec.

    Also, opus may help you if Linphone supports it as it was designed for more flexible network speeds.

    1a8e7194-0def-4cef-8916-727c27087b0b-image.png

    Opus is on LinPhone and enabled by default.

    Disable Speex. Opus is the replacement for that.

    Where is ULAW G711?



  • Here is the default for LinPhone
    E7D358A6-7557-4397-A58E-9F546DB31632.png



  • @Dashrender

    PCMU = G.711

    Disable everything but OPUS and PCMU in Linphone.

    Change your PBX to only use G.722, OPUS, and ULAW. In that order.

    See if you get any improvement.



  • @Dashrender said in Softphones - complaints:

    @JaredBusch said in Softphones - complaints:

    @wrx7m said in Softphones - complaints:

    Could be that their home internet is shite and saturated. Both, on their WLAN and the ISP side.

    This is also a real concern now. I have a great home network and WiFi setup.

    But randomly, my calls are simply shit anymore.

    Why? Because everyone is home. It is filling up the ISP pipe to the various nodes.

    yeah, I definitely know this to be true.. nothing we can do about this.. but troubleshooting to that point is something I still need to do.. Thanks!

    Yeah, I'm not making phone calls right now....
    a5d5c88f-d5cd-46fb-a939-06880581fb29-image.png

    not much better after almsot 5 minutes.
    Peek 2020-04-15 11-46.gif



  • For comparison, a client site to their PBX also in vultr.
    924d25e0-38ab-4187-a3fa-75b5b7d63ce8-image.png



  • @JaredBusch said in Softphones - complaints:

    @wrx7m said in Softphones - complaints:

    Could be that their home internet is shite and saturated. Both, on their WLAN and the ISP side.

    This is also a real concern now. I have a great home network and WiFi setup.

    But randomly, my calls are simply shit anymore.

    Why? Because everyone is home. It is filling up the ISP pipe to the various nodes.

    I have people complaining to me about network-related issues. I can't really do anything about it. I show them that there are other people that have been connected to the VPN for days. A couple users with the same ISP were having issues connecting to our remote desktop server. I had them try connecting to their phones via hotspot and it connected to the RD server. Obviously, this isn't a solution, just proving the point that the issue is with the home connection, not the company services/equipment.



  • @wrx7m said in Softphones - complaints:

    @JaredBusch said in Softphones - complaints:

    @wrx7m said in Softphones - complaints:

    Could be that their home internet is shite and saturated. Both, on their WLAN and the ISP side.

    This is also a real concern now. I have a great home network and WiFi setup.

    But randomly, my calls are simply shit anymore.

    Why? Because everyone is home. It is filling up the ISP pipe to the various nodes.

    I have people complaining to me about network-related issues. I can't really do anything about it. I show them that there are other people that have been connected to the VPN for days. A couple users with the same ISP were having issues connecting to our remote desktop server. I had them try connecting to their phones via hotspot and it connected to the RD server. Obviously, this isn't a solution, just proving the point that the issue is with the home connection, not the company services/equipment.

    Yeah, I've done the same with the phones - On WiFi things were shit, for some, and on Cellular it worked... i.e. home internet was shit, somehow.



  • @Dashrender said in Softphones - complaints:

    I read another post here on ML that was saying WiFi is bad on SIP traffic - is that still true?

    That will always be the case. Wifi can improve, but the fundamental issues remain.



  • @JaredBusch said in Softphones - complaints:

    Stick to ulawonly. G722 takes more bandwidth as it is a high def codec.

    Actually they are identical bandwidth. That's part of the spec. It's just better encoding. G711 isn't very efficient.
    Opus is HD and SMALLER.



  • @Dashrender said in Softphones - complaints:

    Should I be on a specific codec?

    Absolutely, we limit to Opus only. Can't really think of any time you'd want to allow anything else. Opus is HD audio that is adaptable to take advantage of spare bandwidth when available for the best sound, and trims bandwidth when things get tight to keep the best possible audio even when there isn't enough available bandwidth for G711.

    Opus is a game changer and a significant reason that we see our phones working flawlessly where others are failing, you need your codec to adapt to real time conditions or else you are stuck either having poor audio always or good audio that has to fail when things aren't pristine.



  • @Dashrender said in Softphones - complaints:

    Yeah, I've done the same with the phones - On WiFi things were shit, for some, and on Cellular it worked... i.e. home internet was shit, somehow.

    Cellular is better suited for carrying audio. That's specifically what it was built for. Just like how DECT handles audio better than Wifi.



  • @JaredBusch said in Softphones - complaints:

    @Dashrender

    PCMU = G.711

    Disable everything but OPUS and PCMU in Linphone.

    Change your PBX to only use G.722, OPUS, and ULAW. In that order.

    See if you get any improvement.

    This is basically what we do....

    For the clients to Opus and the Skyetel links to G722.



  • I have found most of our home users have crappy wifi right from the carrier. The (in most cases) Spectrum provided Ubee gateways with wifi are junk; while may of our other users have old crappy routers (surprisingly, one user is still on a WRT-54G and has no issues). I am in the process of trying to procure some old Unifi AP's and power injectors that I can pre-program and send out to the remote uses and have them plug into their routers just to get something better than the crap Spectrum uses.



  • @jt1001001 said in Softphones - complaints:

    I have found most of our home users have crappy wifi right from the carrier. The (in most cases) Spectrum provided Ubee gateways with wifi are junk; while may of our other users have old crappy routers (surprisingly, one user is still on a WRT-54G and has no issues). I am in the process of trying to procure some old Unifi AP's and power injectors that I can pre-program and send out to the remote uses and have them plug into their routers just to get something better than the crap Spectrum uses.

    We try and sometimes manage to get full Unifi stacks out to our users. USG + Unifi AP. Gives us great visibility and great performance.



  • @scottalanmiller said in Softphones - complaints:

    @jt1001001 said in Softphones - complaints:

    I have found most of our home users have crappy wifi right from the carrier. The (in most cases) Spectrum provided Ubee gateways with wifi are junk; while may of our other users have old crappy routers (surprisingly, one user is still on a WRT-54G and has no issues). I am in the process of trying to procure some old Unifi AP's and power injectors that I can pre-program and send out to the remote uses and have them plug into their routers just to get something better than the crap Spectrum uses.

    We try and sometimes manage to get full Unifi stacks out to our users. USG + Unifi AP. Gives us great visibility and great performance.

    That would be about the only use case I have for a USG.



  • @scottalanmiller said in Softphones - complaints:

    @jt1001001 said in Softphones - complaints:

    I have found most of our home users have crappy wifi right from the carrier. The (in most cases) Spectrum provided Ubee gateways with wifi are junk; while may of our other users have old crappy routers (surprisingly, one user is still on a WRT-54G and has no issues). I am in the process of trying to procure some old Unifi AP's and power injectors that I can pre-program and send out to the remote uses and have them plug into their routers just to get something better than the crap Spectrum uses.

    We try and sometimes manage to get full Unifi stacks out to our users. USG + Unifi AP. Gives us great visibility and great performance.

    You're setting up work from home setups - so that doesn't surprise me. I'm not doing that, at least not yet. Though, this situation has clearly proven that several people could easily work from home - operators, billing personal, schedulers. Our medical records folks could too if we reassign someone else to pickup and scan papers to a shared location, and deal with the mail.



  • @Dashrender said in Softphones - complaints:

    You're setting up work from home setups - so that doesn't surprise me.

    As should any business looking to have productive workers!



  • @Dashrender said in Softphones - complaints:

    Though, this situation has clearly proven that several people could easily work from home - operators, billing personal, schedulers.

    Right, as soon as management takes them seriously as workers, you'll want to treat their home setups seriously so that they can be productive.



  • @scottalanmiller said in Softphones - complaints:

    @Dashrender said in Softphones - complaints:

    You're setting up work from home setups - so that doesn't surprise me.

    As should any business looking to have productive workers!

    OH - I definitely agree. we would never have considered sending people home in the past...

    though, now with this situation, the ability to see what can be done - the potential is there. We can get rid of the expense of a desk and office space for those employees, the hardware costs remain the same (more or less)..