No ringback with SIP Trunk

[Eduardo Cruz]

Hello,

We have a GSM gateway (2N VoiceBlue) connected to CUCM/Unity Connection 10.5 by SIP Trunk.

When I receive a call by GSM-GW, it's followed to Unity-Auto Attendant and the caller dial the extension number. The caller listen "Wait when I transfer you call.." but no ringback tone is listen.

I'm with the CUCM option enabled: "Disable Early Media on 180" (Sip profile)

Attached the sip lo

Thanks

[Mohammed al Baqari]

Hi,

You need to untick this box to enable early media and get the ringback played from CUCM.

[Eduardo Cruz]

Hi Mohammed

I unticked it and didn't work. Attached the second log.

I confirmed the MRGL is defined on this Sip Trunk.

Thank you