5425 Line Interface Module

[linker3000]

Hi, I have inherited a 5220 with a 5425 Line Interface Module. The phone is working fine as a SIP device but I am not sure if the LIM is working - it came without a (UK) PSTN lead and I have tried one from a desk phone and also a modem lead. I have also tried the LIM in a 5224 but that made no difference.

I have stopped the phone registering with the VoIP system but I'm not able to make outgoing calls, nor does the phone ring on inbound - it may be the lead but the phone gives no indication that it knows the LIM is fitted (it's now back in the 5220) - is there a menu somewhere that would confirm this? I don't have a user guide for the LIM so if anyone is able to provide a PDF (couldn't see on on Mitel edocs) I'd be grateful.

Any tips?

Thanks

 

[MitelTech]

Does the LIM work in SIP mode? I've only used it in MiNet mode. To use it in MiNet you have to program a key on the set to activate it, is it the same for SIP?