# Install requirements

**URL:** <https://community.asterisk.org/t/install-requirements/4115>\
**Category:** Asterisk Support\
**Created:** [February 2, 2006, 3:38pm UTC](https://community.asterisk.org/t/install-requirements/4115 "2006-02-02T15:38:18Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![coupet](https://avatars.discourse-cdn.com/v4/letter/c/4bbf92/32.png) [@coupet](https://community.asterisk.org/u/coupet)\
**Post date:** [February 2, 2006, 3:38pm UTC](https://community.asterisk.org/t/install-requirements/4115/1 "2006-02-02T15:38:18Z")

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Hi,

I am planning to use Asterisk as follows:  
Phones: sip (grandstreaam, sipura, …)  
Trunk: sip or Iax2 (broadvoice, BYOD service, …)

Do I need to install FXS and FXO cards in Asterisk box?

All comments gratly appreciated.

Thanks, Darly

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**Author:** ![baconbuttie](https://sea1.discourse-cdn.com/asterisk/user_avatar/community.asterisk.org/baconbuttie/32/916_2.png) [@baconbuttie](https://community.asterisk.org/u/baconbuttie)\
**Post date:** [February 2, 2006, 4:22pm UTC](https://community.asterisk.org/t/install-requirements/4115/2 "2006-02-02T16:22:39Z")

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if you’re not using analogue lines or phones then you don’t need FXO/FXS hardware.

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**Author:** ![coupet](https://avatars.discourse-cdn.com/v4/letter/c/4bbf92/32.png) [@coupet](https://community.asterisk.org/u/coupet)\
**Post date:** [February 4, 2006, 12:06am UTC](https://community.asterisk.org/t/install-requirements/4115/3 "2006-02-04T00:06:58Z")

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I read that there was a requirement to use a digium X100p, or intel voice card equivalent, or ztdummy ?

Does the latest version of Asterisk require only a network card for connection to VOIP provider and clients?

Thanks, Darly

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**Author:** ![rusty](https://avatars.discourse-cdn.com/v4/letter/r/f17d59/32.png) [@rusty](https://community.asterisk.org/u/rusty)\
**Post date:** [February 4, 2006, 4:57pm UTC](https://community.asterisk.org/t/install-requirements/4115/4 "2006-02-04T16:57:01Z")

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I think with the lates version you do not need the internal timer or it maybe you aonly need it with certain apps such as confrence and quere. I remeber seeing that somewhere but cant remeber where