# Can I use VOX to PTT from my SIP phone

**URL:** <https://community.allstarlink.org/t/can-i-use-vox-to-ptt-from-my-sip-phone/18273>\
**Category:** AllStarLink\
**Created:** [February 17, 2021, 12:04pm UTC](https://community.allstarlink.org/t/can-i-use-vox-to-ptt-from-my-sip-phone/18273 "2021-02-17T12:04:35Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![WI6H](https://community.allstarlink.org/letter_avatar_proxy/v4/letter/w/f1d935/32.png) [@WI6H](https://community.allstarlink.org/u/WI6H)\
**Post date:** [February 17, 2021, 12:04pm UTC](https://community.allstarlink.org/t/can-i-use-vox-to-ptt-from-my-sip-phone/18273/1 "2021-02-17T12:04:35Z")

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For COVID I am using a remote Cisco speakerphone to access my nodes.

I found some Rpt.conf documentation but I am not clear on what would enable vox PTT vs \*99 from the phone.

VOX operation would be convenient in that the MUTE button would be easier to toggle then the DTMF pad.

[https://wiki.allstarlink.org/wiki/Setup\_Autopatch](https://wiki.allstarlink.org/wiki/Setup_Autopatch)

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**Author:** ![Mike](https://community.allstarlink.org/user_avatar/community.allstarlink.org/mike/32/1569_2.png) [@Mike](https://community.allstarlink.org/u/Mike)\
**Post date:** [February 18, 2021, 12:04am UTC](https://community.allstarlink.org/t/can-i-use-vox-to-ptt-from-my-sip-phone/18273/2 "2021-02-18T00:04:20Z")

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As far as I know,  
‘Phone Control Mode’ ( ‘P’) does not have a ‘VOX’ function.  
VOX would be used in simpleusb etc. Mainly designed for use in HF remote base and could be used for other things…  
I don’t think this road will lead you anywhere.  
I suppose you can jerry-rig something against a private node if that is your desire.  
But nothing built -in. other than the above mentioned.

Perhaps someone knows a fast and easy way to the end game ?

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**Author:** ![WD6AWP](https://community.allstarlink.org/user_avatar/community.allstarlink.org/wd6awp/32/5_2.png) [@WD6AWP](https://community.allstarlink.org/u/WD6AWP)\
**Post date:** [February 18, 2021, 4:04am UTC](https://community.allstarlink.org/t/can-i-use-vox-to-ptt-from-my-sip-phone/18273/3 "2021-02-18T04:04:58Z")

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This Topic explains a Zoiper setup. It uses VOX.

> [@Zoiper Setup for AllStar](https://community.allstarlink.org/t/zoiper-setup-for-allstar/14893):
>
> Zoiper is an iOS and Android VoIP telephone app that can be used with AllStar. AllStar Node Settings The Zoiper configuration below allows connections to any node on your AllStar server. In /etc/asterisk/custom/iax.conf add the following lines. This sets the user ID to zoiper and password to the password of your choice. Any number of users can use this ID at the same time. ; Login for zoiper [zoiper] username=Users type=friend context=zoiper host=dynamic auth=md5 secret=yourZoiperPassword di…

Note the `v` in this extensons.conf line switches on VOX mode:  
`exten => _X!,n,rpt(${EXTEN}|Pv|${CALLSIGN}-P)`

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**Author:** ![WI6H](https://community.allstarlink.org/letter_avatar_proxy/v4/letter/w/f1d935/32.png) [@WI6H](https://community.allstarlink.org/u/WI6H)\
**Post date:** [February 18, 2021, 12:05pm UTC](https://community.allstarlink.org/t/can-i-use-vox-to-ptt-from-my-sip-phone/18273/4 "2021-02-18T12:05:12Z")

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This worked perfectly! (Pv vs just P)

; Allow SIP calls to local node - this is the magic part.  
exten =\> 21411,1,rpt(21411|Pv)

Thanks!

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**Author:** ![WI6H](https://community.allstarlink.org/letter_avatar_proxy/v4/letter/w/f1d935/32.png) [@WI6H](https://community.allstarlink.org/u/WI6H)\
**Post date:** [February 21, 2021, 12:06pm UTC](https://community.allstarlink.org/t/can-i-use-vox-to-ptt-from-my-sip-phone/18273/5 "2021-02-21T12:06:09Z")

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