<div>Dear All,</div>
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<div>I have bunch of users using X-Lite sip phone (only G711 supported) which are registered to OnDO server. The OnDO is using SIP trunk to CUCM 6. I also have an ISR router registered in CCM to perform the transcoding. My question is, since the X-Lite only support G711, I suppose that CCM will forward the call to transcoder as MTP when G729 codec is needed, but it doesn't really work. When making a call from X-Lite to other phone (IP Phone, FXS analog phone, etc...) in different region, it always failed and no any transcoding session found in transcoder. I have configured "MTP required" in SIP trunk...</div>
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<div>Is it normal? Or any required configuration missing? Thanks a lot~</div>
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<div>Regards,</div>
<div>Alan</div>