Asterisk - The Open Source Telephony Project
18.5.0
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; ; UDPTL Configuration (UDPTL is one of the transports for T.38) ; [general] ; ; UDPTL start and UDPTL end configure start and end addresses ; udptlstart=4000 udptlend=4999 ; ; Whether to enable or disable UDP checksums on UDPTL traffic ; ;udptlchecksums=no ; ; The number of error correction entries in a UDPTL packet ; udptlfecentries = 3 ; ; The span over which parity is calculated for FEC in a UDPTL packet ; udptlfecspan = 3 ; ; Some VoIP providers will only accept an offer with an even-numbered ; UDPTL port. Set this option so that Asterisk will only attempt to use ; even-numbered ports when negotiating T.38. Default is no. use_even_ports = no