# About Integrating a third-party closed captioning service

**URL:** <https://devforum.zoom.us/t/about-integrating-a-third-party-closed-captioning-service/18227>\
**Category:** API and Webhooks\
**Created:** [May 19, 2020, 2:32am UTC](https://devforum.zoom.us/t/about-integrating-a-third-party-closed-captioning-service/18227 "2020-05-19T02:32:59Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![soohyeon](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/soohyeon/32/1636_2.png) [@soohyeon](https://devforum.zoom.us/u/soohyeon)\
**Post date:** [May 19, 2020, 2:32am UTC](https://devforum.zoom.us/t/about-integrating-a-third-party-closed-captioning-service/18227/1 "2020-05-19T02:32:59Z")

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I’m trying to send the caption using closed caption api.  
Using postman, I sent test caption, but it was too slow to display it on the screen.  
(document: Example: [https://wmcapi.zoom.us/closedcaption?id=200610693&ns=GZHkEA==&expire=86400&spparams=id%2Cns%2Cexpire&signature=nYtXJqRKCW](https://wmcapi.zoom.us/closedcaption?id=200610693&ns=GZHkEA==&expire=86400&spparams=id%2Cns%2Cexpire&signature=nYtXJqRKCW))

・I`d like to know how I can [send and receive] in real time or a little faster like Zoom original caption function.  
Is there any delay originally?

・Before sending caption, is it possible to set [show subtitle] ?  
Because I can`t find that function before sending it.

・Is it possible to set [show subtitle] automatically when I start zoom meeting?  
I have to set [show subtitle] by hand everytime.

Thank you for reading

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**Author:** ![tommy](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/tommy/32/72769_2.png) [@tommy](https://devforum.zoom.us/u/tommy)\
**Post date:** [May 21, 2020, 9:23pm UTC](https://devforum.zoom.us/t/about-integrating-a-third-party-closed-captioning-service/18227/2 "2020-05-21T21:23:47Z")

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Hey @soohyeon,

Can I ask where you are located and how long it took to send?

Thanks,  
Tommy

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**Author:** ![soohyeon](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/soohyeon/32/1636_2.png) [@soohyeon](https://devforum.zoom.us/u/soohyeon)\
**Post date:** [May 25, 2020, 11:51pm UTC](https://devforum.zoom.us/t/about-integrating-a-third-party-closed-captioning-service/18227/3 "2020-05-25T23:51:34Z")

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I’m sorry, there is my mistake.  
I forgot changing sequence number. terrible mistake…

sending is no problem now.

Thank you for your reply and sorry.

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**Author:** ![tommy](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/tommy/32/72769_2.png) [@tommy](https://devforum.zoom.us/u/tommy)\
**Post date:** [June 1, 2020, 6:27pm UTC](https://devforum.zoom.us/t/about-integrating-a-third-party-closed-captioning-service/18227/4 "2020-06-01T18:27:39Z")

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Happy to hear you figured it out! 🙂

Thanks,  
Tommy

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**Author:** ![DeveloperBot](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/developerbot/32/12632_2.png) [@DeveloperBot](https://devforum.zoom.us/u/DeveloperBot)\
**Post date:** [August 21, 2020, 9:38pm UTC](https://devforum.zoom.us/t/about-integrating-a-third-party-closed-captioning-service/18227/5 "2020-08-21T21:38:50Z")

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Closed on August 21, 2020, 9:38pm UTC