I agree with Aaron, To me, Audiocodes MP114 is just painful to configure, a simple example, I need to configure the dtmf digit limit from default 4 to 32, otherwise you won't be able to make a single PSTN 10 digits call no matter how you configure other settings!! There are hundreds of other settings which will confuse you and 90% of them have nothing to do with making a simple phone call.
you can download audiocodes user guide from internet and google some online post , but it takes a lot of time. it definitely is not something plug and play. I had a problem with DTMF working with Asterisk recently. and it was fixed by reduced by DTMF duration on one of the 'advanced' setting. I hope someone can tell me Grandstream or Cisco is better in terms of easy to configure and reliability. Audiocodes has partnership with Microsoft PBX (Lync and others). and i don't think it is good idea b/c Microsoft obvious doesn't know what they are doing in unified communication. I had very positive experience with Mediatrix 1104 unit, it is very easy to config and quality is good. but it is hard to find it on the market nowadays. Yajie
