Hi, I am using following pipalines: src->enc->rtppay->rtpbin->udpsrc and udpsrc->rtpbin->depay->dec->sink to send and receive data usign udp. When i tested these pipelines in local environment. When i tested the same thing on live 3G network these pipelines dont work.:( actually i am not receiving any data at the port. Though the data can be transferred  using other apps. that is tested. Can someone tell me whether this is the problem with the pipeline i have create or i need to do some other settings for the same ?? Thanks and Regards Manish