C500/SMT5600 external antenna plug type?

[Guest export800]

Hi,

Anyone out there know what type of plug the c500's external antenna is? Or more specifically what other phones that share this type of plug?

Would like to use it with the Wilson 3watt amp setup and as of yet they don't list an adaptor plug for this phone.. Hoping another phone shares this plug so I can just buy the adaptor for that phone and use it with the c500 :lol: