I have a google voice connection that is connected via my OBI 110 to my PIAF Purple server. Recently, I was notified that my asterisk voicemails were cut off after ~ 22 seconds. This is the only problem I find with the Google Voice lines. I can reproduce the problem by calling the Google Voice line and being redirected to an extension's voicemail. I believe the real problems lies with the OBI110 and not the Google Voice lines. I believe that asterisk closes the connection if no sound is emitted from the PBX to the caller.
Via the FreePBX interface, I examined the Asterisk Logfiles for some test calls I've made to the PBX. The line that catches my attention is "app.c: No audio available on SIP/TRUNKxxx-xxx??"
I read that RTP settings may help solve this problem. I've tried altering the RTP settings in the OBI110 (both the PBX connection and Google Voice connection) to no avail. I don't know how to set the RTP settings for the OBI110 trunk in FreePBX or if its even possible.
I would be grateful for any help provided. Thanks in advance.
PBX in a Flash PURPLE Status Program
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+-------------------SYSTEM INFORMATION *VERIFIED*---------------------+
¦ Asterisk = ONLINE | Dahdi = ONLINE | MySQL = ONLINE ¦
¦ SSH = ONLINE | Apache = ONLINE | Iptables = ONLINE ¦
¦ Fail2ban = ONLINE | Internet = ONLINE | Ip6Tables = ONLINE ¦
¦ Disk Free = ADEQUATE| Mem Free = ADEQUATE| NTPD = ONLINE ¦
¦ SendMail = ONLINE | Samba = OFFLINE | Webmin = ONLINE ¦
¦ Ethernet0 = ONLINE | Ethernet1 = N/A | Wlan0 = N/A ¦
¦ ¦
¦ PIAF Installed Version = 2.0.6.2 under *HARDWARE* ¦
¦ FreePBX Version = 2.9.0.12 ¦
¦ Running Asterisk Version = 1.8.19.1 ¦
¦ Asterisk Source Version = 1.8.19.1 ¦
¦ Dahdi Source Version = 2.6.1+2.6.1 ¦
¦ Libpri Source Version = 1.4.12 ¦
¦ IP Address =
xxx.xxx.xxx.xxx on eth0 ¦
¦ Operating System = CentOS release 6.2 (Final) ¦
¦ Kernel Version = 2.6.32-220.7.1.el6.i686 - 32 Bit ¦
¦ Incredible PBX 3 Version = 3.0.7 ¦
+---------------------------------------------------------------------+