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How to register to multiple VoIP servers on different/seperate subnets ?
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jolouis Offline

Posts: 324
Joined: Oct 2013
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Post: #3
RE: How to register to multiple VoIP servers on different/seperate subnets ?
(03-26-2017 09:20 PM)mscag Wrote:  Some of our T21PE2 users, however, needs to also register through Account-2 to another VoIP server outside our network. Is it possible to also register Account-2 to a VoIP server on Default VLAN ? If yes, how ?

The phones can only connect to a single VLAN; they do not have the ability to run sub-interfaces on them directly so to solve the problem you must look further up the network from the phones.

The way we typically do this type of deployment is to have the PBX run as the DHCP, TFTP and SIP server. Not sure if that is what you have setup or if you are using a separate DHCP server vs SIP server, but either way the goal is the same. You need a Layer 3 device (i.e. router, or server with routing features/multiple IP interfaces) in order to forward traffic from one VLAN to the other. You should easily be able to achieve this by either:
a) setting sub-interfaces on your server/router (one on Voice VLAN, one on default VLAN), and configure routing between them.
or b) Use a Layer 3 capable switch, and configure it with inter-vlan routing (basically it will do the job of your router to forward traffic between the two networks).

03-28-2017 01:17 PM
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RE: How to register to multiple VoIP servers on different/seperate subnets ? - jolouis - 03-28-2017 01:17 PM

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