[Walter is about to reply when a sound from the person responding to their feed draws his attention. He has the earbuds in, so the voice coming from the other side is considerably muffled.]

...We're in a hollowed out tree, [he says, talking into the microphone of the device], not that that's saying much in the middle of a forest. I'd say we're a little way south of that fountain that was at the end of the run last night.

[Another few seconds of sound from the earbuds indicate the other person is saying something back.]

No.

...You want it to guide you to us?

[Having replied, Walter looks back to Cehd'ra and gestures to the phone.]