# Pjsip\_aor max\_contacts limit

**URL:** <https://community.asterisk.org/t/pjsip-aor-max-contacts-limit/86089>\
**Category:** Asterisk SIP\
**Created:** [October 16, 2020, 10:30am UTC](https://community.asterisk.org/t/pjsip-aor-max-contacts-limit/86089 "2020-10-16T10:30:04Z")\
**Posts on this page:** 6\
**Page:** 1

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**Author:** ![mpit](https://avatars.discourse-cdn.com/v4/letter/m/258eb7/32.png) [@mpit](https://community.asterisk.org/u/mpit)\
**Post date:** [October 16, 2020, 10:30am UTC](https://community.asterisk.org/t/pjsip-aor-max-contacts-limit/86089/1 "2020-10-16T10:30:04Z")

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Hello,  
in the documentation i can not find a limit for the max\_contacts value.  
Is there one?

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**Author:** ![jcolp](https://sea1.discourse-cdn.com/asterisk/user_avatar/community.asterisk.org/jcolp/32/8848_2.png) [@jcolp](https://community.asterisk.org/u/jcolp)\
**Post date:** [October 16, 2020, 10:39am UTC](https://community.asterisk.org/t/pjsip-aor-max-contacts-limit/86089/2 "2020-10-16T10:39:55Z")

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There is no enforced limit from the perspective of Asterisk, but there’s inherently limits in places - such as the type of variable that it is stored in, plus the size of packets (a response to a REGISTER includes the current list of Contacts).

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<div class="post-metadata">

**Author:** ![mpit](https://avatars.discourse-cdn.com/v4/letter/m/258eb7/32.png) [@mpit](https://community.asterisk.org/u/mpit)\
**Post date:** [October 16, 2020, 10:55am UTC](https://community.asterisk.org/t/pjsip-aor-max-contacts-limit/86089/3 "2020-10-16T10:55:46Z")

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Thank for the explanation @jcolp.

If i have n-device with one contact, are the n-device possible to make a outgoing call simultaneously?

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<div class="post-metadata">

**Author:** ![jcolp](https://sea1.discourse-cdn.com/asterisk/user_avatar/community.asterisk.org/jcolp/32/8848_2.png) [@jcolp](https://community.asterisk.org/u/jcolp)\
**Post date:** [October 16, 2020, 11:03am UTC](https://community.asterisk.org/t/pjsip-aor-max-contacts-limit/86089/4 "2020-10-16T11:03:45Z")

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You’re going to need to specify what “outgoing call” means to you.

If you mean a phone placing an outgoing call to a VoIP provider, for example, then there’s no limits except any you yourself add, limits of the system itself, or limits of the VoIP provider.

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<div class="post-metadata">

**Author:** ![mpit](https://avatars.discourse-cdn.com/v4/letter/m/258eb7/32.png) [@mpit](https://community.asterisk.org/u/mpit)\
**Post date:** [October 16, 2020, 11:14am UTC](https://community.asterisk.org/t/pjsip-aor-max-contacts-limit/86089/5 "2020-10-16T11:14:53Z")

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I am fine with answer. Thank you!

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<div class="post-metadata">

**Author:** ![system](https://global.discourse-cdn.com/asterisk/original/2X/4/475d0c889911cfb84ac4881ad6df8b523e3f9105.png) [@system](https://community.asterisk.org/u/system)\
**Post date:** [November 15, 2020, 11:14am UTC](https://community.asterisk.org/t/pjsip-aor-max-contacts-limit/86089/6 "2020-11-15T11:14:58Z")

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