Site has EX controller Micollab and MBG in DMZ. Micollab mobile SIP softphones work calling out the PRI but Minet phones get No audio. Minet phones can dial internally to voicemail and extensions, and also other teleworker phones. I'm thinking it has something to do with the EX controller PRI gateway. Call setup works fine. Have seen lots of threads of teleworker No audio but none with an EX controller.