Questions about a switch for two Networks

[_Marsel]

Hello,
for our new building we need a (poe-)switch which is SIP capable. We would like to connect about 10 POE VoiP phones to it. Also 2 surveillance cameras running in a separate network (own ISP). Is there a way to "connect two routers to one switch" and assign the networks in the switch?

I am happy about any help!

With kind regards
Marsel

Something like that: 

[schumaku]

Any simple manageable switch starting from the Smart Managed Plus switch series and up does allow the configuration of basic static up to 802.11q VLANs. All these VLAN variants allow the configuration of dedicated networks. If properly configured, you can run two networks as per your design.