[OpenSER-Users] nat pinging question

Hello all, In nathelper the documentation mentions two pinging types (upd 4 byte packets and stateless SIP request). Is there a way to choose between one or the other or are they both activated by default? I have configured nathelped to ping with OPTIONS every 15 seconds. modparam("nathelper", "natping_interval", 15) modparam("nathelper", "sipping_method", "OPTIONS") In addition to the OPTIONS packets that are sent every 15 seconds, there is a 4 byte packet that is sent every minute. Why does this happen and is there a way to turn it off? This is what the ping packet sequence looks like: time ping 0 ---> 4 byte pkt 0 ---> OPTIONS 15 ---> OPTIONS 30 ---> OPTIONS 45 ---> OPTIONS 60 ---> 4 byte pkt 60 ---> OPTIONS thank you George Disclaimer The information in this e-mail and any attachments is confidential. It is intended solely for the attention and use of the named addressee(s). If you are not the intended recipient, or person responsible for delivering this information to the intended recipient, please notify the sender immediately. Unless you are the intended recipient or his/her representative you are not authorized to, and must not, read, copy, distribute, use or retain this message or any part of it. E-mail transmission cannot be guaranteed to be secure or error-free as information could be intercepted, corrupted, lost, destroyed, arrive late or incomplete, or contain viruses.