Hello All,

I'm not sure if this must be addressed to the user list but I apologize in advance. I'm getting the below error while in pass-through mode (proxy_media=true) but I get success when the disable transcoding is set on the sofia profile. 

[WARNING] switch_core_codec.c:703 Codec G723 Exists but not at the desired implementation. 8000hz 20ms

[ERR] switch_core_media.c:2285 Can't load codec?

I did hear about broken SIP devices out there but since it works fine when disable transcoding is set, I thought I give it a shot on the mailing list and while at it, this error does not occur in case of another pass-through codec(G729)

Here are my settings when in proxy media mode:

Sofia Profile: 

inbound-late-negotiation = true

inbound-codec-negotiation = greedy (tried scrooge)

I also tried rtp-autofix-timing=true (no luck)

DialPlan:

proxy_media=true

bridge

FS version tried: 1.5.13b & 1.2

Attached is full FS log for both the failed & successful calls. Your help or suggestion is very much appreciated.

Best Regards,

Ali_R