I'm a newbe of Freeswitch. I have tried to config Polycom's soundpoint IP550 to use wideband codecs. G722 has no problem with conference and dial 9999. but with G7221 and G7221c have problems.

 I have config vars.xml to add <X-PRE-PROCESS cmd="set" data="global_codec_prefs=G7221@32000h,G7221@16000h"/>  and config polycom IP 550's SIP.cfg like the attachment.

Can anyone help me to confirm if my config is right.

 

Zhao Xiaoqiang