Hello,
I am looking for an SPA 3102 expert out there. There's very few and far in between so any help will be appreciated.
I am a physician and I work with Doctors Without Borders travelling around the globe to very remote areas - so I've developed a rather complex VoIP network to consult with fellow professionals by routing calls thru gizmo's which I set up in hospitals and homes. I’ve learned that many remote areas will have workable wireless access but bad phones – so I programmed a good Android phone with multiple SIP accounts and that allows me to get in touch with colleagues and consult without anyone having to spend lots on long distance fees. I use PAP2's and SIPURA 2102's and sometimes 3102's when I need to access local POTS lines in different countries.
I encountered a strange problem a few days ago when one of the 3102's located in Rochester Minnesota started buzzing/rasping loudly when I dialed thru the PSTN line. I'm a surgeon - not a VoIP engineer - so most of the setting on the admin screen are ancient Sanskrit to me. I wish all these Cisco ATA's had some sort of textbook course I could read up on so when something like this happens we would all know how to fix...
This is what happens: This particular 3102 is hard wired to a Netgear WGR614 V.10 Wireless Router. We’ve all become fairly good at setting up the ATA’s and tweaking them to work just right with different routers and networks. This 3102 has a fixed IP and is DMZ'd. It works fine: Calls come in and go out via the VoIP line. The PSTN line always worked great. Both lines register ok. Until a few days ago I would VoIP in, get the local dial tone and place the call on the local POTS perfectly. Then suddenly I VoIP’ed in, got the local dial tone, dialed the number...but...instead of hearing a ringing tone from the receiving side - I got a very loud buzzing/rasping noise. It seems as if when the PSTN "returns" the ringing signal, something happens in the 3102 that creates this buzzing. As of a day ago the buzzing has increased and now overlaps the dial tone even before I dial the local POTS number.
Does anyone have an idea what's going on. Nothing in the docs by Cisco.
Best to all
