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@Dast, I believe you are correct that the problem is being caused by NAT. RFC3261 states that, any SIP device not receiving the ACK to its final 2xx reply has to disconnect the call by issuing a standard BYE request. The trick now is to work out what is going wrong. The most common culprit is...

Normally SIP headers are manipulated in the dial plan using a variable name that represents the name of the header in question. These variables are prefixed by "sip_h_" so P-Acme-VSA-1 would be referenced as sip_h_P-Acme-VSA-1.

What if the webserver is not IIS?

There are many possible reasons, it's most often caused by a process/machine crash or a power failure, but can also be the result of early or partial disk failure. Did the machine get restarted, have you checked uptime? The kernel generally logs any diagnostic messages about I/O issues, you...

Sounds like you have a corrupted database, if you are using SQlite as your FreeSwitch DB (default install), you should see some files in the location /var/lib/freeswitch/db/. It is normally safe to delete everything in there and restart FreeSwitch. Always make a backup before doing anything...

Just had a look on my 4.5.9 install of two weeks ago, all the Yealink options are present for me. The trouble with us installing from the Master branch at different times is non of us are singing from the same hymn book. So it becomes very difficult, if not impossible, to faithfully replicate...

Peter, for outbound, it looks like you are calling 04127... without a prefix like 9 - that's fine, have you configured an outbound route with a condition something like ^(0\d{9,17})$ (Dial Plan -> Outbound Routes). For inbound, as ewdpb says, make sure you have a destination for the inbound...

What as an actual IP address and not just a domain name that looks like an IP address? I would like to know more about this... The reason I ask is because a couple of years ago I set up Fusion on a VM then replicated the VM several times just changing the IP address (and hostname etc.) and...

This sort of issue can be very difficult to track down and may not be caused by a single factor alone. First of all, are you sure this issue is with the machine running FreeSwitch and not a bottleneck in a router or a misbehaving network switch somewhere? If you are convinced the issue is...

There is really not much to do. Depending on how you manage your Linux installation, you can change the IP address by editing /etc/network/interfaces. When you installed Fusion, it will have created a default domain for you with a name based on the IP address at the time of installation for...

You enter your BLF detail in the keys section of the device page, every time you hit save you get another blank line to put the next entry in. If you have a common set of BLFs for many phones create a profile with them in and assign that to each phone. To answer second question, any item in...

The 32 second limit on incoming calls is most likely a NAT issue. Check what is in the contact headers and check what is happening to the ACK that follows the 200 OK.

You will need to provide more information to get any useful help. From what I can guess, what you are calling the "Register String" looks just like Contact header, it would be helpful to see the whole packet. You should not need to worry about the gateway UUID. What have to put in on the...

@mos, I have just tested the "toll_allow" method on my test lab (Fusion 4.5.9 Fs 1.10.1) it worked first time for me. I set up ext 201 with a toll allow values of foo and set up ext 202 with a toll allow value of bar. I then configured two gateways on different SIP trunks. Then created two...

I do it using caller_id_number as the second condition. Four digit extension numbers, 11xx go out on one outbound route, 22xx go out on another. I found using $sip_from_user for this was problematic if end users used click to dial. See the attached screen shot.

Glad you got it working. There must be more to this, I have just checked my local_extension and I do not export the presence_id variable but my BLFs work fine. Looking at my CDR records, the presence_id always seems to be set, but there is no indication as to when or where it gets set. Curious...

I have just completed an upgrade on a test box from 4.4.5 to Master. Part of this process requires the deletion of a number of dial plans from all the domains. This can be tedious and time consuming for 50+ domains, so I wrote a quick and simple php script to do the dialplan deletions. The...

Hi, I will answer your questions to the best of my knowledge, I'm sure others will correct me if I'm wrong... 1. No, just a domain that the SIP extensions will register against. By default the domain is just a name that happens to look like an IP address. Many people use an FQDN as the domain...

You can disable early media but it shouldn't have an impact on billing. Early media is normally initiated with an SDP body associated with a 183 session progress message, the call has not been answered at this point so should not trigger billing...

It is always a good idea to have a backup in case anything does go wrong, there are 101 ways a machine can fail! I personally have had no issues in rebooting Debian 8. FusionPBX Et Al has always come back up OK.