I recently hooked up my sipura IP phone and set it up as an SIP device to connected to asterisk. I am able to dial a number on the SIP phone, connect to an external number via the PSTN connected to asterisk and begin the conversation. At first, the audio quality is PERFECT, in both directions. I can hear the person clearly and they claim to hear me like im on a regular POTS line. After approximately 1 minute, the quality turns horrible and the person can no longer hear me, but I can faintly here them. There is a lot of static on the line, it almost sounds like an electronic device is interfering with it. I thought maybe it was a wireless phone or router, so I disconnected all those and put my cell phone in the other room. Still no change. Anyone have any ideas? Paul
Paul wrote:> I recently hooked up my sipura IP phone and set it up as an SIP device to > POTS line. After approximately 1 minute, the quality turns horrible and the > person can no longer hear me, but I can faintly here them. There is a lot of > static on the line, it almost sounds like an electronic device isI had a sipura that did this, and had to RMA it. Mine was worse though... the static started immediately so you couldn't actually hear the other end unless they shouted. Apparently it's not uncommon for Sipuras to have a certain amount of static hiss (The replacement I got had it, before it self-destructed, and the one a friend has in Australia has it quite badly, but he doesn't mind). It's just whether it bothers you or not. I'd definately RMA one that is as bad as yours though. Tony