The TA is rejecting T.38 requests due to "SB.CCM createAnswer: Maximum number of T.38 calls or PLC/VAD already running". There are no other fax or modem calls active. What would cause this?
Here's the MGCP endpoint config:
voice mgcp-endpoint 9 codec-group All_Codecs connect fxs 0/9 no echo-cancellation modem-passthrough no nls t38