Are there any key differences in install for 1.4 and 1.6?

I have repeatedly run the same install routine that I use for Asterisk on Centos or Ubuntu to install Asterisk 1.6.26 and 1.6.19 with FreePBX?

In all cases I cannot pickup an inbound call.
I pick up the phone and it just keeps ringing on the other end. I get dead air on the answering phone and eventually a blank voice mail.

The CLI actually shows messages that make it look like the call was answered at the point where I pick up the phone to answer.

If I run the exact same install routine with Asterisk 1.4 I get a perfect install every time.

My only conclusions at this point are that it has to do with:

  • DTMF
  • NAT
  • or Codecs

The hardware I tested with has both analog Dahdi and SIP phones connected. The PC’s I have used are an ATOM 330 on an ASUS mobo and a P4 1.8 from Dell.

The software selections that do NOT work are:

  • Centos 5.4 or Ubuntu Server 9.10
  • Asterisk or Asterisk
  • FreePBX 2.7.0
  • Dahdi-complete 2.3.0

The software selections that DO work are:

  • Centos 5.4 or Ubuntu Server 9.10
  • Asterisk 1.4.29 or Asterisk 1.4.30
  • FreePBX 2.7.0
  • Dahdi-complete 2.3.0

    I also tested with the latest version of Debian.

If it makes a difference my phones are Grandstream GXP20XX, X-lite and a Chinese knock off that works perfectly on any 1.4x system.

I’ve done at least a 1/2 dozen installs of 1.6x on each of the above distros to make sure I wasn’t crazy.

My usual install routine is derived from: … centos-5-1 with adjustments for the differences in LAMP on Ubuntu and Zap vs. Dadhi on Centos.

I REALLY need a couple features in 1.6 that 1.4 doesn’t have. Multi parking lots and T38 are at the top of the list.

ANY,…input would be greatly appreciated!

Thanks in advance,