哪些被Asterisk 21版本暴砍的功能有多少是你常用的？我指的是chan

江湖再无NoCDR

去掉了 NoCDR的功能，改用 CDR_PROP。之前啊，我要是想让打给老板的电话不留痕迹，可以这样操作：

exten => 5551212,1,Answer()
exten => 5551212,n,NoCDR()
exten => 5551212,n,Dial(SIP/8888)

现在呢，我要改成这样写：

exten => 5551212,1,Answer()
exten => 5551212,n,Set(CDR_PROP(disable)=1)
exten => 5551212,n,Dial(SIP/8888)

这个和尚足足有丈三那么高。

app_macro也不见了

这个影响可不仅仅是个别macro语句。
要知道，很多应用app都支持macro调用的，都要改。比如 app_dial就不能使用 M 这个转移呼叫的macro了。
其他一些被删除的功能，包括：
chan_alsa: chan_alsa，改了很多次名字，终于，把自己改没了。ALSA是Advanced Linux Sound Architecture的缩写，即高级Linux声音架构，就是声卡的意思。
chan_mgcp: MGCP协议，电信设备常见的协议，古调虽好，今人不弹，步入历史。
chan_sip: 自1999年开始沿用了25年的经典SIP协议，正式退休。以后天下只有pjsip。
chan_skinny: 用来对接Cisco电话的协议，寿终正寝。没有替代方案。
res_monitor，作为对指定通道录音的应用，也被删除，以后的录音只有MixMonitor。
还有一些弃子：
users.conf被弃用了，在下一个版本将也会被删除。
负责域名解析的函数ast_gethostbyname() 被弃用，改用 `ast_sockaddr_resolve()替代。
Remove files that are no longer updated

爷青结系列

常用的还有哪些？

看一下常用的CLI命令，从这里能看到Asterisk这次改动还是挺大的，精简了很多功能。

*CLI> core show help
! – Execute a shell command
acl show – Show a named ACL or list all named ACLs
aoc set debug – enable cli debugging of AOC messages
bridge kick – Kick a channel from a bridge
bridge show all – List all bridges
bridge show – Show information about a bridge
bridge technology show – List registered bridge technologies
bridge technology {suspend|unsuspend} – Suspend/unsuspend a bridge technology
cc cancel [core|all] – Kill a CC transaction
cc report status – Reports CC stats
cdr set debug [on|off] – Enable debugging in the CDR engine
cdr show active – Display active CDRs for channels
cdr show status – Display the CDR status
cdr submit – Posts all pending batched CDR data
cel show status – Display the CEL status
channel request hangup – Request a hangup on a given channel
cli check permissions – Try a permissions config for a user
cli reload permissions – Reload CLI permissions config
cli show permissions – Show CLI permissions
confbridge kick – Kick participants out of conference bridges.
confbridge list – List conference bridges and participants.
confbridge lock – Lock a conference.
confbridge mute – Mute participants.
confbridge record start – Start recording a conference
confbridge record stop – Stop recording a conference.
confbridge show menu – Show a conference menu
confbridge show menus – Show a list of conference menus
confbridge show profile bridge – Show a conference bridge profile.
confbridge show profile bridges – Show a list of conference bridge profiles.
confbridge show profile user – Show a conference user profile.
confbridge show profile users – Show a list of conference user profiles.
confbridge unlock – Unlock a conference.
confbridge unmute – Unmute participants.
config list – Show all files that have loaded a configuration file
config reload – Force a reload on modules using a particular configuration file
config show help – Show configuration help for a module
core abort shutdown – Cancel a running shutdown
core clear profile – Clear profiling info
core ping taskprocessor – Ping a named task processor
core reload – Global reload
core reset taskprocessor – Reset a named task processor’s stats
core reset taskprocessors – Reset all task processors’ stats
core restart gracefully – Restart Asterisk gracefully
core restart now – Restart Asterisk immediately
core restart when convenient – Restart Asterisk at empty call volume
core set debug category – Enable/disable debugging categories
core set debug – Set level of debug chattiness
core set debug channel – Enable/disable debugging on a channel
core set trace – Set level of trace chattiness
core set verbose – Set level of verbose chattiness
core show applications [like|describing] – Shows registered dialplan applications
core show application – Describe a specific dialplan application
core show calls [uptime] – Display information on calls
core show channels [concise|verbose|count] – Display information on channels
core show channeltypes – List available channel types
core show channeltype – Give more details on that channel type
core show channel – Display information on a specific channel
core show codecs [audio|video|image|text] – Displays a list of registered codecs
core show codec – Shows a specific codec
core show config mappings – Display config mappings (file names to config engines)
core show file formats – Displays file formats
core show functions [like] – Shows registered dialplan functions
core show function – Describe a specific dialplan function
core show hanguphandlers all – Show hangup handlers of all channels
core show hanguphandlers – Show hangup handlers of a specified channel
core show help – Display help list, or specific help on a command
core show hints – Show dialplan hints
core show hint – Show dialplan hint
core show image formats – Displays image formats
core show license – Show the license(s) for this copy of Asterisk
core show profile – Display profiling info
core show settings – Show some core settings
core show sounds – Shows available sounds
core show sound – Shows details about a specific sound
core show switches – Show alternative switches
core show sysinfo – Show System Information
core show taskprocessor alerted subsystems – List task processor subsystems in alert
core show taskprocessors [like] – List instantiated task processors and statistics
core show threads – Show running threads
core show translation – Display translation matrix
core show uptime [seconds] – Show uptime information
core show version – Display version info
core show warranty – Show the warranty (if any) for this copy of Asterisk
core stop gracefully – Gracefully shut down Asterisk
core stop now – Shut down Asterisk immediately
core stop when convenient – Shut down Asterisk at empty call volume
core waitfullybooted – Wait for Asterisk to be fully booted
database del – Removes database key/value
database deltree – Removes database keytree/values
database get – Gets database value
database put – Adds/updates database value
database query – Run a user-specified query on the astdb
database show – Shows database contents
database showkey – Shows database contents
devstate change – Change a custom device state
devstate list – List currently known custom device states
dialplan add extension – Add new extension into context
dialplan add ignorepat – Add new ignore pattern
dialplan add include – Include context in other context
dialplan debug – Show fast extension pattern matching data structures
dialplan eval function – Evaluate dialplan function
dialplan reload – Reload extensions and only extensions
dialplan remove context – Remove a specified context
dialplan remove extension – Remove a specified extension
dialplan remove ignorepat – Remove ignore pattern from context
dialplan remove include – Remove a specified include from context
dialplan set chanvar – Set a channel variable
dialplan set extenpatternmatchnew false – Use the Old extension pattern matching algorithm.
dialplan set extenpatternmatchnew true – Use the New extension pattern matching algorithm.
dialplan set global – Set global dialplan variable
dialplan show – Show dialplan
dialplan show chanvar – Show channel variables
dialplan show globals – Show global dialplan variables
dnsmgr refresh – Performs an immediate refresh
dnsmgr reload – Reloads the DNS manager configuration
dnsmgr status – Display the DNS manager status
features show – Lists configured features
group show channels – Display active channels with group(s)
http show status – Display HTTP server status
indication add – Add the given indication to the country
indication remove – Remove the given indication from the country
indication show – Display a list of all countries/indications
local show channels – List status of local channels
logger add channel – Adds a new logging channel
logger filter changroup – Filter PBX logs by channel log group
logger filter reset – Reset PBX channel filtering
logger filter show – Show current PBX channel filtering
logger mute – Toggle logging output to a console
logger reload – Reopens the log files
logger remove channel – Removes a logging channel
logger rotate – Rotates and reopens the log files
logger set level {DEBUG|TRACE|NOTICE|WARNING|ERROR|VERBOSE|DTMF} {on|off} – Enables/Disables a specific logging level for this console
logger show channels – List configured log channels
logger show levels – List configured log levels
malloc trim – Return excess memory to the OS
manager reload – Reload manager configurations
manager set debug [on|off] – Show, enable, disable debugging of the manager code
manager show command – Show a manager interface command
manager show commands – List manager interface commands
manager show connected – List connected manager interface users
manager show eventq – List manager interface queued events
manager show events – List manager interface events
manager show event – Show a manager interface event
manager show settings – Show manager global settings
manager show users – List configured manager users
manager show user – Display information on a specific manager user
media cache create – Create an item in the media cache
media cache delete – Remove an item from the media cache
media cache refresh – Refresh an item in the media cache
media cache show all – Show all items in the media cache
media cache show – Show a single item in the media cache
module load – Load a module by name
module refresh – Completely unloads and loads a module by name
module reload – Reload configuration for a module
module show [like] – List modules and info
module unload – Unload a module by name
moh reload – Reload MusicOnHold
moh show classes – List MusicOnHold classes
moh show files – List MusicOnHold file-based classes
moh unregister class – Unregister realtime MusicOnHold class
no debug channel – Disable debugging on channel(s)
pjproject set log level {default|0|1|2|3|4|5|6} – Set the maximum active pjproject logging level
pjproject show buildopts – Show the compiled config of the pjproject in use
pjproject show log level – Show the maximum active pjproject logging level
pjproject show log mappings – Show pjproject to Asterisk log mappings
pjsip dump endpt – Dump the res_pjsip endpt internals
pjsip list aors – List PJSIP Aors
pjsip list auths – List PJSIP Auths
pjsip list channels – List PJSIP Channels
pjsip list ciphers – List available OpenSSL cipher names
pjsip list contacts – List PJSIP Contacts
pjsip list endpoints – List PJSIP Endpoints
pjsip list identifies – List PJSIP Identifies
pjsip list registrations – List PJSIP Registrations
pjsip list subscriptions {inbound|outbound} [like] – List active inbound/outbound subscriptions
pjsip list transports – List PJSIP Transports
pjsip qualify – Send an OPTIONS request to a PJSIP endpoint
pjsip reload qualify aor – Synchronize the PJSIP Aor qualify options
pjsip reload qualify endpoint – Synchronize the qualify options for all Aors on the PJSIP endpoint
pjsip send notify – Send a NOTIFY request to a SIP endpoint
pjsip send register – Registers an outbound registration target
pjsip send unregister – Unregisters outbound registration target
pjsip set logger {on|off|host|add|method|methodadd|verbose|pcap} – Enable/Disable PJSIP Logger Output
pjsip show aors – Show PJSIP Aors
pjsip show aor – Show PJSIP Aor
pjsip show auths – Show PJSIP Auths
pjsip show auth – Show PJSIP Auth
pjsip show channels – Show PJSIP Channels
pjsip show channel – Show PJSIP Channel
pjsip show channelstats – Show PJSIP Channel Stats
pjsip show contacts – Show PJSIP Contacts
pjsip show contact – Show PJSIP Contact
pjsip show endpoints – Show PJSIP Endpoints
pjsip show endpoint – Show PJSIP Endpoint
pjsip show identifiers – List registered endpoint identifiers
pjsip show identifies – Show PJSIP Identifies
pjsip show identify – Show PJSIP Identify
pjsip show qualify aor – Show the PJSIP Aor current qualify options
pjsip show qualify endpoint – Show the current qualify options for all Aors on the PJSIP endpoint
pjsip show registrations – Show PJSIP Registrations
pjsip show registration – Show PJSIP Registration
pjsip show scheduled_tasks – Show pjsip scheduled tasks
pjsip show settings – Show global and system configuration options
pjsip show subscription {inbound|outbound} – Show active subscription details
pjsip show subscriptions {inbound|outbound} [like] – Show active inbound/outbound subscriptions
pjsip show transport-monitors – Show pjsip transport monitors
pjsip show transports – Show PJSIP Transports
pjsip show transport – Show PJSIP Transport
pjsip show unidentified_requests – Show PJSIP Unidentified Requests
pjsip show version – Show the version of pjproject in use
queue add member – Add a channel to a specified queue
queue priority caller – Change priority caller on queue
queue reload {parameters|members|rules|all} – Reload queues, members, queue rules, or parameters
queue remove member – Removes a channel from a specified queue
queue reset stats – Reset statistics for a queue
queue set penalty – Set penalty for a channel of a specified queue
queue set ringinuse – Set ringinuse for a channel of a specified queue
queue show – Show status of a specified queue
queue show rules – Show the rules defined in queuerules.conf
queue {pause|unpause} member – Pause or unpause a queue member
rtcp set debug {on|off|ip} – Enable/Disable RTCP debugging
rtcp set stats {on|off} – Enable/Disable RTCP stats
rtp set debug {on|off|ip} – Enable/Disable RTP debugging
rtp show settings – Display RTP settings
say load [new|old] – Set or show the say mode
stasis show topics – Show all topics
stasis show topic – Show topic
stun set debug {on|off} – Enable/Disable STUN debugging
timing test – Run a timing test
udptl set debug {on|off|ip} – Enable/Disable UDPTL debugging
udptl show config – Show UDPTL config options
voicemail forward – Forward message to another folder
voicemail move – Move message to another folder
voicemail reload – Reload voicemail configuration
voicemail remove – Remove message
voicemail show aliases – List mailbox aliases
voicemail show mailbox – Display a mailbox’s content details
voicemail show users [for] – List defined voicemail boxes
voicemail show zones – List zone message formats
xmldoc dump – Dump the XML docs to the specified file
xmldoc reload – Reload the XML docs