Cisco Systems ATA 188 rtpcatch Limitations

7-20
Cisco ATA 186 and Cisco ATA 188 Analog Telephone Adaptor Administrator’s Guide (H.323)
OL-4008-01
Chapter7 Configuring and Debugging Fax Services
Debugging the Cisco ATA 186/188 Fax Services
rtpcatch Limitations
•rtpcatch performs optimally when analyzing capture files con taining only one VoIP session.
•rtpcatch detects only G.711A, G.711µ-law, G.723, G.729, T.38, Cisco fax relay, modem
pass-through with or without redundancy packets, RTCP packets and NSE packets.
•rtpcatch can handle a maximum of 20 prserv ports u sing the -port option.
•rtpcatch may not detect T.38 packets correctly.