[OpenSER-Users] ipv4 and ipv6 intercommunication

[苗杰]

     I'm a beginner at openser.

     What does the variable 'af' stand for?And what is the value of the
optional?

     Thanks!


    313 # Comment out three lines below if you want
    314 # RTP for IPv4->IPv4 calls to go directly
    315 # between UAs
    316                     if (af == inet) {
    317                         force_rtp_proxy("faii");
    318                         t_on_reply("1");
    319                     }
    320 # proxy session from a Internal IPv4
    321 # phone to a External IPv6 address
    322                     if (af == inet6) {
    323                         force_rtp_proxy("faie");
    324                         t_on_reply("1");
    325                     }
    326             }
    327
    328             else if (lookup("location_inet6")) {
    329 # proxy session from a External IPv6
    330 # phone to a Internal IPv4 address
    331                     if (af == inet) {
    332                         force_rtp_proxy("faei");
    333                         t_on_reply("1");
    334                     }
    335
    336 # Comment out three lines below if you want
    337 # RTP for IPv6->IPv6 calls to go directly
    338 # between UAs
    339                     if (af == inet6) {
    340                         force_rtp_proxy("faee");
    341                         t_on_reply("1");
    342                     }
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