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Asterisk的Chan_SIP和PJSIP支持SIP Instant Message功能，配合SIP软电话，类似于QQ即时通信功能。

参考网址：

https://asteriskfaqs.org/2015/11/16/asterisk-users/how-do-i-enable-instant-messaging-support-for-pjsip-endpoints-on-asterisk-1310.html

一、Chan_SIP下IM配置

1、sip.conf配置文件

/etc/asterisk/sip.conf文件

 

[general]

accept_outofcall_message = yes

outofcall_message_context = astsms

auth_message_requests = no

2、extensions.conf

/etc/asterisk/extensions.conf文件

 

[send_message] 

exten => _.,1,NoOp(SMS receiving dialplan invoked) 

exten => _.,n,NoOp(To ${MESSAGE(to)}) 

exten => _.,n,NoOp(From ${MESSAGE(from)}) 

exten => _.,n,NoOp(Body ${MESSAGE(body)}) 

exten => _.,n,Set(ACTUALTO=${CUT(MESSAGE(to),@,1)}) 

exten => _.,n,MessageSend(${ACTUALTO},${MESSAGE(from)}) 

exten => _.,n,NoOp(Send status is ${MESSAGE_SEND_STATUS}) 

exten => _.,n,GotoIf($["${MESSAGE_SEND_STATUS}" != "SUCCESS"]?sendfailedmsg) 

exten => _.,n,Hangup() 

 

; 

; Handle failed messaging 

exten => _.,n(sendfailedmsg),Set(MESSAGE(body)="[${STRFTIME(${EPOCH},,%d%m%Y-%H:%M:%S)}] Your message to ${EXTEN} has failed. Retry later.") 

exten => _.,n,Set(ME_1=${CUT(MESSAGE(from),<,2)}) 

exten => _.,n,Set(ACTUALFROM=${CUT(ME_1,@,1)}) 

exten => _.,n,MessageSend(${ACTUALFROM},ServiceCenter) 

exten => _.,n,Hangup() 

二、PJSIP下IM配置

1、pjsip.endpoint.conf文件

在每个分机后面都添加message_context=send_message，以FreePBX-1805-2和Yeastar的IPPBX为例，创建一个101分机

pjsip.endpoint.conf配置文件

 

[101]

type=endpoint

aors=101

auth=101-auth

allow=ulaw,alaw,gsm,g726,g722

context=from-internal

callerid=101 <101>

dtmf_mode=rfc4733

mailboxes=101@device

mwi_subscribe_replaces_unsolicited=yes

transport=0.0.0.0-udp

aggregate_mwi=yes

named_call_group=yes

named_pickup_group=yes

rtcp_mux=yes

bundle=no

ice_support=no

media_use_received_transport=no

media_encryption=no

timers=yes

media_encryption_optimistic=no

rtp_symmetric=yes

rewrite_contact=yes

force_rport=yes

language=en

message_context=send_message

2、extensions_custom.conf文件增加send_message的context

extensions_custom.conf文件

 

[send_message]

exten => _.,1,NoOp([${STRFTIME(${EPOCH},,%Y-%m-%d %H:%M:%S)}] SMS receiving dialplan invoked)

exten => _.,n,NoOp(Message To: ${MESSAGE(to)})

exten => _.,n,NoOp(Message From: ${MESSAGE(from)})

exten => _.,n,NoOp(Message Body: ${MESSAGE(body)})

exten => _.,n,Set(ACTUALTO=${CUT(MESSAGE(to),@,1)})

exten => _.,n,Set(ACTUALTO_TECH=${CUT(ACTUALTO,:,1)})

exten => _.,n,Set(ACTUALTO_SUF=${IF($[${LEN(${CUT(ACTUALTO,:,3)})}>0]?${CUT(ACTUALTO,:,3)}:${CUT(ACTUALTO,:,2)})})

exten => _.,n,Set(ACTUALTO=${ACTUALTO_TECH}:${ACTUALTO_SUF})

exten => _.,n,MessageSend(${ACTUALTO},${MESSAGE(from)})

exten => _.,n,NoOp(Message Send status : ${MESSAGE_SEND_STATUS})

exten => _.,n,Hangup()

 

三、软电话测试

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