If you notice your server has the incorrect time, the first place you will want to check is the Free PBX web interface under Admin - Make sure to click Submit after making any changes.If you’re still seeing the incorrect time on your system, you will need to make sure that the NTP service is running.For example, it may be that your dialplan relies on a deprecated command and should be updated to use a new command that contains more functionality, has a better code base, and will be updated on a more regular basis.Commands that are deprecated are typically left in the code for backward-compatibility, but issues reported about these deprecated commands will be given lower priority than issues to do with the newer preferred methods.My favorite part of any Asterisk project overview or conference talk is answering questions from someone new to Asterisk. Even hardware vendors who may be frightened of Asterisk from a competitive standpoint are using it in their labs and core networks: almost all devices in the Voice-over-IP world are tested with , making it the most compatible system across vendors. Asterisk is a mature, robust software platform that permeates nearly every area of the telecommunications industry and has firmly cemented itself as one of the basic elements in any open source service delivery system.
Upgrading Asterisk between major versions, such as from 1.2 to 1.4 or from 1.6.2 to 1.8 is akin to upgrading an operating system./usr/bin/install -c checking whether build environment is sane... Compressed codecs are not appropriate for faxing; fax transmissions are themselves compressed and don't tolerate further compression; moreover, most compressed codecs are lossy and a fax transmission will not tolerate losses. This is the device Hylafax uses to connect to IAXmodem.There exist two files that should be read prior to any system upgrade: , which are shipped with the Asterisk source code.These files contain details on changes to syntax and other things to be aware of when upgrading between major versions.