Xisis's Communication Device

[Walter The Moral]

At the end of the book, Xisis makes contact with those on First of the Sun using a device that can communicate through the emberdark.

The part that intrigues me is that, despite Silverlight having 10:1 time dilation, Xisis speaks completely normally for the Eelakins. When Kelsier spoke to Shallan in WaT, the time dilation had an effect on the communication, which the Seon had to make up for, but I don't think the communication device could have done that (Xisis would have to take a long time to answer, which we didn't see).

How does the communication occur with the time dilation? Is this something anyone could do with a communication device, or just a dragon?

[Treamayne]

33 minutes ago, Walter The Moral said:

How does the communication occur with the time dilation?

The question assumes Xisis is still in Silverlight, rather than returning to his studies (Tress Spoilers) beneath the Spore Oceans on Lumar.

Alternately, Seons speak through SR Connection - and the tech level when Kelsier spoke to Shallan was significantly lower (Era 2), so Era 4 tech may have found ways to fix the problem of communicateing to/from Silverlight (possibly a Bendalloy/Cadmium fabrial to manipulate the comm signal). 

[Walter The Moral]

4 hours ago, Treamayne said:

Alternately, Seons speak through SR Connection - and the tech level when Kelsier spoke to Shallan was significantly lower (Era 2), so Era 4 tech may have found ways to fix the problem of communicateing to/from Silverlight (possibly a Bendalloy/Cadmium fabrial to manipulate the comm signal). 

I hadn't considered a speed bubble. I don't think it would affect the comm singal, because then you still have the problem of reaction time. People in Silverlight would react to things 10 times slower than those outside, so they'd probably have to communicate from within a speed bubble.

[Treamayne]

1 hour ago, Walter The Moral said:

I hadn't considered a speed bubble. I don't think it would affect the comm singal, because then you still have the problem of reaction time. People in Silverlight would react to things 10 times slower than those outside, so they'd probably have to communicate from within a speed bubble.

If it is a mechanical application, why would it need to affect the user at all? As part of establishing a link, each device shares it's time-frame and the appropriate effect is applied to incoming and/or outgoing signals to match the frame (matching incoming signals seems most likely, to me).