I am not sure this is possible, and if it is, have no idea of how to do it. Due to my remote location, I have no access to a hire a cisco guy to do it for me, so hoping someone can be patient and help guide me online to do this.
In the diagram, you can see two DHCP servers. One controlled by the PBX (for the phone lines) and another issued by the LAN server. I want to ensure that all computers (including guests on laptops) get their DHCP id from the LAN DHCP rather than from the PBX DHCP and that all phones get their IP from the PBX DHCP.
As to the remote office over VPN, I'm hoping that both the phone lines can talk to the PBX for usage (so I can use same phone number with new extension numbers).
The main server does have a serial connection (ZTerm) - but I have never used it.
If the Cisco IP Phone is connected to a Cisco switch, the switch next informs the phone of the voice VLAN defined on the switch.The phone needs to know its VLAN membership before it can proceed with the Dynamic Host Configuration Protocol (DHCP) request for an IP address. Refer the following URL for more information on configring DHCP on IP phones
We are pleased to announce availability of Beta software for 16.6.3. 16.6.3 will be the second rebuild on the 16.6 release train targeted towards Catalyst 9500/9400/9300/3850/3650 switching platforms. We are looking for early feedback from custome...