[@Tominas]: Yes, and no.
Soulflame is an organization without affiliation, and higher beings don't ONLY contract with those in their respective pantheons. It's just a trend.

I guess an analogy is like calling a phone number. If you know the person's number, you can call them directly. Otherwise, you might end up fishing randomly or having to look up their number in a guidebook, at which point you're still prone to making a mistake and contacting someone else instead. It's a similar case here; Anchors have the 'number' of the beings they're associated with, but Soulflame... Doesn't. Usually. Something might make it easier to get into contact with a specific deity, but it's usually luck of the draw.