Greetings from India.
i am Noob to IP PBX.
I have a existing 2 trunks +8 extension analog PBX setup.
Now i want to move to a hybrid PBX using freePBX.
Have two pstn trunks (non fibre) from local ISP(BSNL), both presently connected to my analog PBX.
i want to transfer both the trunks using HT 814 or 812 ATA to my freePBX.
retain analog PBX with original two extensions and one extra extension.
FreePBX is running on virtual machine.
router and firewall is pfsense running on its dedicated bare metal hardware…no virtualisation
so my questions are…
if i connect my both trunks to ATA and then connect the ATA to freePBX will i would be able to make outbound and inbound calls using softphone apps installed on cellphones?
can i connect one extension of the analog PBX to ATA, so that analog extensions and IP extensions can have cummunication with each other and also outbound calling thru PSTN on IPPBX?
is it necessary to have a seperate VLAN for the PBX system or can i use flat network with a single subnet?
In future the number of extensions are going to increase to around 50 and trunk lines may be to 4. my plan is to get rid of the analog PBX in a phased manner.
I am asking these questions so that i can decide if the setup is able to work reliably then only i would invest in the ATA and IP phones.
On the side note- i also have a FTTH connection with a voice line but the ISP has done setup at their end in a manner that the VOIP is on the private network of the ISP and only accessible on the PSTN port of the ONT modem. they are not willing/not able to provide with the public IPs of the SIP and proxy servers.
proposed deployment Layout attached