How do I set up a rule to use the chimes on my dome siren?

[lmosenko]

Easy enough…
You can use Smart Lighting app from SmartThings. If you don’t have it installed go to here:

Marketplace->SmartApps(tab)->Lights & Switches->Smart Lights->select you Siran->Turn On->When->Contact Sensor->Opens->Have it turn off (optionally) When door closes.

You can also do this via CoRe community rule engine.

[OBSOLETE: [BETA MILESTONE 2] CoRE (Community's own Rules Engine)

UPDATE 1/12/2017: CoRE is now in the process of being heavily streamlined (reference to @bamarayne) into a web controllable app. There will be no updates to this version of CoRE other than critical updates. An update will be posted here when the new SE (Streamlined Edition LOL) version is available for the public. We’re close to hitting alpha stage. UPDATE 9/28/2016: CoRE has moved on to Release Candidate. Please kindly follow us here. Continuing in the BETA process of CoRE (milestone 1 topic here), we’ve now moved to BETA MILESTONE 2. This is all about crushing those bugs and speeding up those pistons you’re having trouble with. While absolutely necessary additions will occur here and there, adding features is NOT the main focus of M2. WARNING: As mentioned before, this SmartApp is in …

The code for the app is here and needs to be installed in your IDE and than you can make your own custome rules/automations dor your house.