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The person you are trying to reach is not available, leave

Postby new936 » 12/17/2020

For the last 4-5 months whenever I try to call my mom on the freephone line I get the message -"The person you are trying to reach is not available. Please leave a message"! I am also on freephoneline. We both bought SIP files a few years ago and use Obihai200.

I tried to change the SIP server from voip.freephoneline.ca to voip4.freephoneline.ca but no improvement!
new936
Quiet One
 
Posts: 43
Joined: 03/04/2010
SIP Device Name: Linksys

Re: The person you are trying to reach is not available, lea

Postby Liptonbrisk » 12/17/2020

new936 wrote: voip4.freephoneline.ca


ProxyServerPort needs to be 6060 when using voip4.freephoneline.ca
voip4.freephoneline.ca:6060 needs to specified either in the ProxyServer field, or 6060 needs to be in ProxyServerPort with voip4.freephoneline.ca listed for ProxyServer.

a)Are you able to call your FPL number using Fongo Mobile and vice versa?
If so, the problem is likely on the other end.

b) Is your mother able to call her FPL number using Fongo Mobile and vice versa?

c) Dial ***1, and enter the IP address you're told into your web browser.
Navigate to Status-->Call History
Locate the call to your mother.
Is there any useful information listed, such as a three digit SIP error code?


A. Ensure that your mother has configured her ATA using this PDF guide: download/file.php?id=2065.

i) Be sure to especially follow the steps listed on pages 42 to 44 under the heading,
"Are you getting one way audio issues with an OBi200/202 and Freephoneline? Are incoming calls not ringing?"

Skip step 10 on page 43.

B. What brand and model modem is she using?

C. What brand and model router is she using? (refer to #2 below concerning SIP ALG)


D. Rings before voicemail must be greater than 1: https://www.freephoneline.ca/voicemailSettings

E. After logging in at https://www.freephoneline.ca/showSipSettings, your mother's account needs to show
SIP Status: connected
And the user agent must be a device she recognizes.

Also, she should dial ***1, and enter the IP address she's told into her web browser.
Navigate to Status--System Status-->SP(FPL) Service Status
What does the "Status" indicate?

Registration is a requirement for incoming calls to work.
Please do not send me emails; I do not work for nor represent Freephoneline or Fongo. Post questions on the forums so that others may learn from responses or assist you. Thank you. If you have an issue with your account or have a billing issue, submit a ticket here: https://support.fongo.com/hc/en-us/requests/new. Visit http://status.fongo.com/ to check FPL/Fongo service status. Freephoneline setup guides can be found at viewforum.php?f=15.
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Liptonbrisk
Technical Support
 
Posts: 1841
Joined: 04/26/2010
SIP Device Name: OBi202
Firmware Version: 3.2.2 (Build:8680EX)
ISP Name: Cable
Computer OS: Windows 10 x64 Pro
Router: Asuswrt-Merlin

Re: The person you are trying to reach is not available, lea

Postby Liptonbrisk » 12/17/2020

(Generic info)

Typically, for VoIP SIP services, especially for Freephoneline/Fongo, you want

1) a router that does not have a full cone NAT,

Visit https://dh2i.com/kbs/kbs-2961448-unders ... -punching/.
Mango from the Obitalk.com forums writes,
“Use a restricted cone NAT router, and do not use port forwarding or DMZ. Restricted cone NAT will only permit
inbound traffic from the service provider you're registered to. If you have a full cone NAT router, it will allow traffic
from any source. This is probably not what you intend.
If you have a Windows computer, you can test your router using the utility here:
http://www.dslreports.com/forum/remark,22292023. To run it, use stun stun.ekiga.net from a command prompt.”
Essentially, you download the stun-test.zip file; extract the stun.exe file from within the zip file to an easily
accessible location; use an elevated command prompt (visit
http://www.thewindowsclub.com/how-to-ru ... inistrator); change directory (cd) to the
directory or location where you extracted stun.exe (visit
http://www.digitalcitizen.life/command- ... c-commands); and type “stun stun.ekiga.net” without
the quotation marks followed by the enter/return button on your keyboard.
Asus routers, at the time of this writing, produce port restricted cone NAT routers, for example and are fine,
provided you’re using one with Asuswrt-Merlin, third party firmware installed.

2) a router that lets you disable SIP ALG if it's buggy,

To understand why SIP ALG often causes horrible problems, please visit
https://www.voip-info.org/routers-sip-alg/ (scroll down to the section on SIP ALG problems).

If you're dealing with a modem/router combo issued by an ISP or a router with SIP ALG forced on, you may have
to use voip4.freephoneline.ca:6060 for the Proxy Server. The purpose of voip4.freephoneline.ca:6060 is to circumvent
faulty SIP ALG features in routers.

3) a router that allows you to set QoS or assign highest priority to your ATA or IP Phone over all other devices on your LAN (local area network),

For a very general description of what QoS can do for you, visit https://www.voipmechanic.com/qos-for-voip.htm.
The basic idea is if you're torrenting or have a bunch of other computers, smartphones, tablets, etc. downloading and uploading (hogging all your available bandwidth), you don't want
your ATA not to have access to enough bandwidth to make or receive calls properly. So QoS or a Bandwidth Monitor feature (which is just another form of QoS) is a really good idea for VoIP users.

I often get an occasional relative complaining to me, "Hey my calls sound choppy." And then when I go visit, some kids are playing MMOs on a computer, while another person is downloading a huge file,
and another person is backing up files to a cloud service all at the same time someone else is trying to talk on the phone. All those devices, without QoS enabled, are fighting over available bandwidth along with the ATA.

and 4) A router that lets you adjust both Unreplied and Assured UDP timeouts.

Thanks to Mango, many of us now understand that in order for ATAs to remain registered and working properly with a VoIP SIP provider like Freephoneline, in particular after power failures, the following conditions must be met:

UDP Unreplied Timeout (in your router) < NAT Keep-alive Interval (in your ATA; for Obihai ATAs this is X_KeepAliveExpires; for Grandstream, the setting is SIP OPTIONS Keep Alive Interval) < UDP Assured Timeout (in your router) < SIP Registration Failure Retry Wait Time (or RegisterRetryInterval in Obihai ATAs)

“<“ means less than.

When a modem leases a new IP address, a problem can arise where prior associations using the old IP address are maintained in the router. When the ATA attempts to communicate using the old IP address, the response is unreplied, and then if the UDP Unreplied timeout is greater than the Keep Alive Interval (and UDP Unreplied timeout is often set to 30 by default in consumer routers) a problem arises where the corrupted connection persists. If UDP Unreplied timeout is, for example, 17, and the NAT Keep Alive Interval is 20, then the corrupted connection will timeout or close. A new connection will be created, and everything will work fine.

Another problem can occur when the Keep-Alive interval is greater than UDP Assured Timeout (often 180 by default in consumer routers): the NAT hole will close due to the ATA not communicating frequently enough with the SIP server. In turn, incoming calls may, intermittently, not reach the ATA. Again, X_Keepalives expires is supposed to be 20 with FPL.

(the above settings are making reference to those in Obihai ATAs)

Getting access to both UDP Unreplied Timeout and UDP Assured Timeout settings in consumer routers may be difficult, if not impossible. Asuswrt-Merlin (I would avoid any model below/less powerful than an RT-AC68U), third party firmware for Asus routers, does offer easy access to these two settings, which are found under General–>Tools-->Other settings. My understanding is that third party Tomato firmware has these two settings as well. So if your router supports Tomato firmware, that may be another option. Note that I will not be held accountable any damage resulting from failed firmware updates. Apparently, Mikrotik routers also allow users to change both Assured and Unreplied UDP timeout settings as well: https://forums.redflagdeals.com/recomme ... #p28056619.

Router firmware that allows users to adjust Assured and Unreplied UDP timeouts include

Asuswrt-Merlin
Ubiquiti
Mikrotik
pfSense
Tomato
DD-WRT


The keep alive interval for FPL is 20. The SIP Registration Failure Retry Wait Time is 120. I use 15 for UDP Unreplied Timeout and 115 for UDP Assured Timeout.



ISPs do not issue customers routers that can do all four things I just listed. Typically it's far better to have your own router with strong QoS functions and a restricted cone NAT firewall,
disable whatever SIP ALG feature is enabled in the router, and stick whatever modem/router combo your ISP gives you into bridge mode. For Bell Hubs, visit http://forums.redflagdeals.com/please-s ... r-1993629/. For Rogers, visit https://www.rogers.com/customer/support ... ridgemodem.
Please do not send me emails; I do not work for nor represent Freephoneline or Fongo. Post questions on the forums so that others may learn from responses or assist you. Thank you. If you have an issue with your account or have a billing issue, submit a ticket here: https://support.fongo.com/hc/en-us/requests/new. Visit http://status.fongo.com/ to check FPL/Fongo service status. Freephoneline setup guides can be found at viewforum.php?f=15.
User avatar
Liptonbrisk
Technical Support
 
Posts: 1841
Joined: 04/26/2010
SIP Device Name: OBi202
Firmware Version: 3.2.2 (Build:8680EX)
ISP Name: Cable
Computer OS: Windows 10 x64 Pro
Router: Asuswrt-Merlin

Re: The person you are trying to reach is not available, lea

Postby new936 » 12/21/2020

Thanks, Liptonbrisk.

There are the settings in her Obihai- Service Provider SIP.

I am not very technically savvy but tried to call her from the Fongo app on tablet and it works.
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new936
Quiet One
 
Posts: 43
Joined: 03/04/2010
SIP Device Name: Linksys

Re: The person you are trying to reach is not available, lea

Postby Liptonbrisk » 12/21/2020

For OBi2xx ATAs, this PDF guide should be used fully instead of using preconfigured settings from Obitalk: download/file.php?id=2162), If you haven't done so already, go through the guide.

If you used the Obitalk web portal (http://www.obitalk.com) to configure your ATA, keep in mind that you must continue using it to configure your ATA. Otherwise whatever settings you change will eventually be overwritten by what you previously entered at obitalk.com anyway. If you wish to disable this behaviour, dial ***1. Enter that IP address into a web browser. Navigate to System Management-->OBiTalk Provisioning-->select Disabled for the method. Save. Reboot ATA. Now obitalk.com won't overwrite whatever changes you make via the device's interface (via IP address).

Pick one method (obitalk.com) or the other (IP address of device) for changing device settings. But do not use both methods.

(In Obitalk.com, you will need to enable and enter expert settings to do the following, if you want to use Obitalk.com. You do this by selecting Edit Profile-->Advanced Options-->check Enable OBi Expert Entry from Dashboard-->submit)

Keep in mind too, that if you're using the Obitalk.com web portal, after you submit a new setting, it takes several minutes before Obitalk.com pushes the changes you've made to your ATA. Your ATA should reboot automatically after the changes are submitted.

A. In your Obihai ATA or at Obitalk.com (whichever method you normally use; don't use both methods), navigate to Voice Services-->SP(FPL) Service-->X_UserAgentPort. X_UserAgentPort should be a random port number between 30000 and 60000. Just pick a port number in that range. Change to a new port number in that range. Click the “submit” button, and reboot the ATA. (If you use Obitalk.com to change settings, you will need to continue using Obitalk.com).

Using a high random SIP port may help to bypass SIP ALG, and it also helps to avoid SIP Scanners (or hackers).


B. Navigate to Service Providers-->ITSP Profile (FPL)-->SIP
i) ensure X_DiscoverPublicAddress is enabled (it is by default)
ii) enable X_UsePublicAddressInVia (it's not by default)
You will need to uncheck default, device default, and Obitalk settings boxes. Then check the box to enable the feature.

This helps to ensure incoming calls are directed to your WAN IP with FPL's switches.

iii) RegisterExpires should be left at at default, 3600 seconds. I have no idea why you have 60 seconds listed instead.



C, Navigate to Voice Services-->SP(FPL)

i) ensure X_KeepAliveEnable: Checked
ii) ensure X_KeepAliveExpires: 20
ii) change X_KeepAliveMsgType to notify

Obihai's default keep-alive message didn't get a response from FPL's server in the past. Use "notify" instead.


D. After logging in at https://www.freephoneline.ca/showSipSettings, your account needs to show
SIP Status: connected
And the user agent must be a device you recognize.

i) Also, dial ***1, and enter the IP address your told into your web browser.
Navigate to Status--System Status-->SP(FPL) Service Status
What does the "Status" indicate?

E. Your mother hasn't accidentally blocked your FPL number, right? Your incoming call is going directly to her FPL voicemail system. What you're hearing is FPL's default voicemail message.
Please do not send me emails; I do not work for nor represent Freephoneline or Fongo. Post questions on the forums so that others may learn from responses or assist you. Thank you. If you have an issue with your account or have a billing issue, submit a ticket here: https://support.fongo.com/hc/en-us/requests/new. Visit http://status.fongo.com/ to check FPL/Fongo service status. Freephoneline setup guides can be found at viewforum.php?f=15.
User avatar
Liptonbrisk
Technical Support
 
Posts: 1841
Joined: 04/26/2010
SIP Device Name: OBi202
Firmware Version: 3.2.2 (Build:8680EX)
ISP Name: Cable
Computer OS: Windows 10 x64 Pro
Router: Asuswrt-Merlin

Re: The person you are trying to reach is not available, lea

Postby Liptonbrisk » 12/21/2020

new936 wrote: but tried to call her from the Fongo app on tablet and it works.


1. Is she able to call you using FPL?

2. Was the tablet connected to your home network's Wi-Fi?
Were you at home?
Were you using cellular data instead of Wi-Fi?

3. What brand and model modem are you using?

4. What brand and modem router are you using?

For the last 4-5 months whenever


5) Did anyone change ISP around that time, or switch to a different router?

6) Dial ***1, and enter the IP address you're told into your web browser.
Navigate to Status-->Call History
Locate a call to your mother that's failed.
Is there any useful information listed, such as a three digit SIP error code?



Some causes of incoming calls going straight to voicemail include

1) not being registered (but your mom's phone rang when you called her using Fongo Mobile, so her ATA is registered),
2) having Do Not Disturb enabled ( (but your mom's phone rang when you called her using Fongo Mobile, so DND is off),
3) having a number blocked on a handset or in the ATA, and
4) SIP ALG

I have no problems with Obihai ATA to Obihai ATA calls using FPL. Without more information, I'm out of ideas.
Please do not send me emails; I do not work for nor represent Freephoneline or Fongo. Post questions on the forums so that others may learn from responses or assist you. Thank you. If you have an issue with your account or have a billing issue, submit a ticket here: https://support.fongo.com/hc/en-us/requests/new. Visit http://status.fongo.com/ to check FPL/Fongo service status. Freephoneline setup guides can be found at viewforum.php?f=15.
User avatar
Liptonbrisk
Technical Support
 
Posts: 1841
Joined: 04/26/2010
SIP Device Name: OBi202
Firmware Version: 3.2.2 (Build:8680EX)
ISP Name: Cable
Computer OS: Windows 10 x64 Pro
Router: Asuswrt-Merlin

Re: The person you are trying to reach is not available, lea

Postby new936 » 12/23/2020

Thanks, Liptonbrisk. Now I can call her and it rings.

Now when I call from her FPL to my FPL it gives -similar message :? I will check my Obitalk settings and see if anything different from your suggestions.
new936
Quiet One
 
Posts: 43
Joined: 03/04/2010
SIP Device Name: Linksys

Re: The person you are trying to reach is not available, lea

Postby Liptonbrisk » 12/25/2020

new936 wrote:Thanks, Liptonbrisk. Now I can call her and it rings.

Now when I call from her FPL to my FPL it gives -similar message :? I will check my Obitalk settings and see if anything different from your suggestions.



1) Registration is a requirement for incoming calls. As I mentioned before, check to ensure your ATA is registered. RegisterExpires should be left at at default, 3600 seconds.

2) Dial *82 (Unblock Caller ID). Ask her to dial that as well.

3) Dial *79 (Disable Do Not Disturb)

4) Ensure that you have configured your ATA using this PDF guide: download/file.php?id=2142.

a) Check to ensure that X_AcceptSipFromRegistrarOnly is disabled. This setting is found under Voice Services-->SP(FPL) Service in your ATA.
That setting can affect SIP URI calls when the user is not registered on voip.freephoneline.ca, and FPL to FPL calls are SIP URI calls.

b) Be sure to especially follow the steps listed on pages 42 to 44 under the heading,
"Are you getting one way audio issues with an OBi200/202 and Freephoneline? Are incoming calls not ringing?"
Please do not send me emails; I do not work for nor represent Freephoneline or Fongo. Post questions on the forums so that others may learn from responses or assist you. Thank you. If you have an issue with your account or have a billing issue, submit a ticket here: https://support.fongo.com/hc/en-us/requests/new. Visit http://status.fongo.com/ to check FPL/Fongo service status. Freephoneline setup guides can be found at viewforum.php?f=15.
User avatar
Liptonbrisk
Technical Support
 
Posts: 1841
Joined: 04/26/2010
SIP Device Name: OBi202
Firmware Version: 3.2.2 (Build:8680EX)
ISP Name: Cable
Computer OS: Windows 10 x64 Pro
Router: Asuswrt-Merlin


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