Failover to a mobile phone if extension is offline

Asterisk Asterisk General
1

Hi erveryone,

I have the following dialplan :

exten => 222222222,1,Answer
exten => 222222222,2,Set(CALLFILENAME=${STRFTIME(,%d-%m-%y_%H-%M-%S)}${EXTEN:1}${UNIQUEID})
exten => 222222222,3,Monitor(wav,/var/www/mipa_callmanagement/recordedcalls/${CALLFILENAME},m)
exten => 222222222,4,Ringing
exten => 222222222,5,Dial(SIP/102,15)
exten => 222222222,6,Wait(1)
exten => 222222222,7,Dial(SIP/103,15)
exten => 222222222,8,Wait(1)
exten => 222222222,9,Dial(SIP/101,15)
exten => 222222222,10,Wait(1)
exten => 222222222,11,Goto(222222222,4)

What I need if to failober to mobile ONLY if the extension 101 if offline. What should I add to this plan ?

Thank you very much,

Regards

2

Can this do the trick ?

same => n,Set(NETWORKSTATUS=${SIPPEER(sip_trunkA-out,status)})
same => n,Gotoif($[NETWORKSTATUS=UNREACHABLE]?101:)
same => n,Dial(SIP/sip_trunkA-out/${EXTEN:1})
same => 101,Dial(SIP/sip_trunkB-out/${EXTEN:1})

3

This appears to be a Support question, not a General observation.

The function you are using is new to me. It may well work.

However, trying to dial an unregistered SIP device, should produce a dial status of channel unavailable and a hangup cause of 20. You would need to experiment to see what a qualify failure would do. It may produce the same dial status, but the hangup cause may or may not differ.

4

Try to check the sip peer status with DEVICE_STATE(SIP/peer).

5

Here is my solution. I can’t test it actually, but somebody will this afternoon :

exten => 222222222,1,Answer
exten => 222222222,n,Ringing
exten => 222222222,n,GotoIf($["${DEVICE_STATE(101)}" = “UNAVAILABLE”] & $["${DEVICE_STATE(102)}" = “UNAVAILABLE”] & $["${DEVICE_STATE(103)}" = “UNAVAILABLE”]?1000)
exten => 222222222,n,Dial(SIP/102,15)
exten => 222222222,n,Wait(1)
exten => 222222222,n,Dial(SIP/103,15)
exten => 222222222,n,Wait(1)
exten => 222222222,n,Dial(SIP/101,15)
exten => 222222222,n,Wait(1)
exten => 222222222,1000,Dial(${GLOBAL(TRUNK)}/07891206607)

Do you think it’s going to work ? I am not sure if the UNAVAILABLE state is the right one. I saw that it also exists : UNKNOWN | NOT_INUSE | INUSE | BUSY | INVALID | UNAVAILABLE | RINGING | RINGINUSE | ONHOLD
What is the right one for a phone that is not registred ?

Thank you ! Cheers

6

The $[…] should be around the whole logical expression.

Device names are of the form technology/address, not just addresss.

Answer, followed by Ringing forces the use of inband ringback tone. Do you really intend that? The caller will get charged even if the call fails.

7

is this better ? :

exten => 222222222,1,GotoIf($["${DEVICE_STATE(SIP/101)}" = “UNAVAILABLE”] & $["${DEVICE_STATE(SIP/102)}" = “UNAVAILABLE”] & $["${DEVICE_STATE(SIP/103)}" = “UNAVAILABLE”]?1000)
exten => 222222222,n,Answer
exten => 222222222,n,Ringing
exten => 222222222,n,Dial(SIP/102,15)
exten => 222222222,n,Wait(1)
exten => 222222222,n,Dial(SIP/103,15)
exten => 222222222,n,Wait(1)
exten => 222222222,n,Dial(SIP/101,15)
exten => 222222222,n,Wait(1)
exten => 222222222,1000,Dial(${GLOBAL(TRUNK)}/07891206607)

What do you mean by “The $[…] should be around the whole logical expression.” ? Do I have to surrong the whole expression by one more $[ … ] ? like :

GotoIf( $[ $["${DEVICE_STATE(SIP/101)}" … = “UNAVAILABLE”] ] ?1000)

8

You only have one $[ and one ]. If you need to bracket internally, you use (…).

9

like that ?

exten => 222222222,1,GotoIf($[$["${DEVICE_STATE(SIP/101)}" = “UNAVAILABLE”] & $["${DEVICE_STATE(SIP/102)}" = “UNAVAILABLE”] & $["${DEVICE_STATE(SIP/103)}" = “UNAVAILABLE”]]?1000)

I took this one as a model :

exten => _011X.,2,GotoIf($[$["${ENUM:0:3}" = “SIP”] | $["${ENUM:0:3}" = “IAX”]]?3:4)

10

No.

I don’t think the model is correct, but I suppose it might work.