Cisco supports active media, I'm not sure about Clarent. With active media, calls behind a symmetric NAT will work fine because the GW waits for the first RTP packet from the UA before forwarding back on the port it received the packet. Thus, you don't need rtp proxying.
g-)

Asep Saifudin wrote:

Hi,

Does Anyone have experience SER call to PSTN or Cellular via Clarent Analog gateway ? because I always got One-Way Audio (Caller can hear Callee but Calle cannot hear Caller). If I call via CISCO gateway I have no problem or always got Two-Way Audio

~Asep
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