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Mitel Forums => Mitel MiVoice Business/MCD/3300 => Topic started by: vorlander on April 01, 2009, 05:16:18 AM

Title: Problem SIP Trunk CISCO<->MITEL
Post by: vorlander on April 01, 2009, 05:16:18 AM

Hi to everyone.

We have a problem with SIP trunk between Cisco <-> Mitel.

If an user in cisco call a mitel user everythink in ok.

Sometime when mitel user call a Cisco user, mitel user can hear the cisco user, but cisco user cannot.

In mitel's logs, we have messages like this:

  Port:14fd9f90 Could not Create a compatible MD. Event SMH_FSM_ANSWER State: SMH_FSM_WAITING_ANSWER

Anyone can help me?

Thank you

Title: Re: Problem SIP Trunk CISCO<->MITEL
Post by: sadzas on April 17, 2009, 11:02:52 AM

One way audio?

You should to check the RTPs, the UDP ports.