Also Caller ID doesnt work with either the UK 2xx XML or the UK 110 XML files.( This is a bit strange as Caller ID worked fine at the outset with the pre-installed (N. American)default XML file).
I had to change some of the callerid parameters to get it to work for my phone in the UK.
I set under Physical Interfaces - Phone1 Port
CallerIDMethod to "FSK(V.23)"
CallerIDTrigger to "after first ring"
Just try the options under these 2 settings to find what works for your phone.
Yes, usual CallerIDMethod in the UK is FSK(V.23).
No, usual CallerIDTrigger in the UK is "Before First Ring".
If using an Obi110 or OBi212 with a UK PSTN line you will probably also need to set the first of those two in the LINE port settings.
And the latter means you can reduce the RingDelay from the default 4 seconds to 0.