Prevent pauses when running tests without an accessible DNS server
Don't route telephone numbers to the BGCF, potentially a temporary fix
Merge pull request #617 from Metaswitch/ut_pauses

[Reviewer: Alex] Prevent pauses when running tests without an accessible DNS server
Fix comedy error
Merge pull request #618 from Metaswitch/iss586_temp_fix

Reviewer AMC: Don't route telephone numbers to the BGCF, potentially a temporary fix