Anyone done any work with these yet? I got one in the office that Im trying to set up and having a few issues. I am connecting to an offsite MIPU with a public IP assigned to it, the same MIPU that we are running several IP5131's on here at the office where I am setting up the 4100. The issue is that I cannot get the phone to register to the MIPU. Well, it does eventually register, but literally hours later. I started playing with the phone last week at around 2pm, couldn't get a register so I closed up shop at around 4. Came in the next day and it was fully registered. Made some test calls and found that I had one-way speech so I played around with a few settings, rebooted and tried to re-register and it was a no-go. Ran out on a service call for about 1.5 hours and came back to find it fully registered again, still had one-way speech. I've tried several different setup options in NeM but still cannot get it to register without waiting sometimes several hours. Anybody have any ideas as to why it takes so long to fully register? The one-way speech will be the next hurdle but I really need a registered phone to troubleshoot that and do not have the luxury of waiting so long in between reboots/re-register.

Are you able to connect a SIP handest to your public MIPU as this is a common issue with SIP registration onto a public MIPU card.

If you test it locally to where you have the MIPU installed does it work correctly?

A VPN is much better and it works

I had simular problems with getting it to work over the WAN. I had it configured at the office. After playing with it for about an hour, I got it to work.

Then I got it to the customer site and could not get it to register. Since we had access to the router, I played with it for a few more hours, then overnight I saw it registered.

Then I had audio problems, until I check a box on the Sonicwall router; "Enable SIP transformation". Audio started working right away.

I have been able to connect other SIP clients to my MIPU, I had a SIP client on my Android that worked well but it seems to me I had issues with it registering then too (its been a while).

I reconfigured everything so that it is all on a local network, the phones registered immediately and work very well, the range is decent. I am a little bit miffed about it requiring a NTP to display the correct time, are there free NTP servers out there kinda like free DNS servers? Overall I like the phone(s) though.

We only have our IP4100s on the local network so I can't help with the offsite configuration. As for the NTP server we use a Windows 2003 server machine but if there is a computer on site with Windows XP (not sure about Vista or 7) it can be set up to act as a NTP. Have you been able to use the "function keys" on the phone. I can use them as speed dials for numbers 10 - 13 but I would like to put features like call park or voice mail transfer on them.

I haven't played around with the flex keys at all, couldn't find in the manual how to program them. I just have the phones set up on a test system on the bench right now anyway so there is no dial tone to make outbound calls, just the three wireless phones to intercom back and forth. My office is at the end of our building but I imagine if I put the base unit in the middle of the building, I would get coverage throughout the entire office complex and most of the marina outside, very impressive range.