Does the system has music on hold and sip trunk

Is your phone connecting to a hosted PBX provider or is it connecting to a premise-based IP PBX? Incoming and outgoing calls are usually handled by two separate connections between your PBX and the service provider SIP trunk. Sounds like a registration problem with the SIP trunk. There is nothing you can do from the phone itself to fix this.

This should be an audo response...the one with the big horse laugh :-)

Panasonic TD's have 4 music sources, BUT there is no tenant service. You can play SOURCE 1 to trunks and SOURCE 2 to BGM and external page, but you can't play Source 1 to trunks 1-3 and Source 2 to trunks 4-6. A TD has no tenant service. That was addressed in the TDA system.

System programs 803 and 990 control how the music is played and where. There is external equipment that can split music to different trunk groups. It's expensive so the upgrade from a TD to a TDA might be a better option.

Carl

Make sure that it is a Dual Mode 5220. If it is you can use it as a SIP extension. It wiill say it on the back of the Mitel phone next to the 5220.
If it is a dual mode phone you can purchase a sip trunk from a provider and then would be able to use the phone.
When you boot up the phone hold the blue super key while the phone boots, hit the no softkey till you get to phone mode. Hit yes it will allow you to change the phone from minet to sip. This should get you started in the right direction.

As you have probably found, SIP phones are not supported until R5, which just came out.

have no clue about Asterisk. BUT, i know that Asterisk can do SIP trunks, as well as the newer releases of QE. You might be able to set up a SIP trunk between the 2.....????

On the Prostar 816 the MOH is connected to the BK-OR/OR-BK wires of the Female connector on the Base Champ Connector. You will need to connect the Headset jack connector to this location, that means cutting off the headset/ear piece from the wire and terminating it to the BK-OR pair of wires. Then MMC 309 and 408 are used to program the music on hold source to the stations and trunks.