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MiVoice Office 250/Mitel 5000 / One way trransmission on ISDN PRI calls incoming only

« on: September 20, 2012, 04:42:05 PM »

Has anyone run into one way transmission on ISDN PRI calls only on incoming calls? The caller can hear me (on the mitel 5000) ,but I can not hear the originator (PSTN).  If I originate a call two way transmission works like a charm.  I am using National ISDN 2 variant.  Any help is appreciated.