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Hold failure, call is only muted. Please press hold again to unmute

When using snom D375 with firmware  snomD375-SIP 8.9.3.80 (the latest one), when trying to hold an incoming call in order to answer a new one, we obtain the following error message:

"Hold failure, call is only muted. Please press hold again to unmute".

it freezes for several seconds, which frequently causes the caller to hung up.


Unnatended transfer also don't work.Of course, the key is correctly configured.


The snoms 300 and 320 doesn't show this problem.Only the D375 ones.


I have attached sip trace and register from the phone for reference and debugging aid

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Best Answer

This issue has been converted into a ticket.



Regards,


Sean Collins

Snom Support 


Answer

This issue has been converted into a ticket.



Regards,


Sean Collins

Snom Support 

Hi


I have the same problem but it affects to all my snom300 and 320 firmware version 8.7.5.35


Regards

Hi Carlos,


Please check your settings. You might have set a special music on hold (MOH) functionality by configuring a MOH server:
http://wiki.snom.com/Settings/user_moh


Do you have the music on hold server set? If yes: when you press Hold, this setting causes the phone to send an INVITE to this MOH server to request music-on-hold. What happens is that the server probably rejects this INVITE or does not reply correctly. If this is the case, you will see error "Hold failure, call is only muted. Please press hold again to unmute".

The phone has a standard MOH functionality which I would recommend to try instead. Try to remove the music on hold server (set the setting to empty, under Identity X -  SIP Settings(Section): Music on Hold Server), and use the standard music on hold functionality of the phone/PBX. If you put the call on hold and you want the phone to send music to the held party, you can  also enable the following setting:
http://wiki.snom.com/wiki/index.php/Settings/play_music_during_hold

See more information about MOH here: http://wiki.snom.com/Category:HowTo:MOH


Best Regards,

Your Snom support team

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