Cisco - Put on hold

Asterisk Asterisk Endpoints
1

Hello, does anyone know how I can use a PJSIP_Header to notify a Cisco phone to trigger the Hold button?

For paging, automatic answering works with answer-after=0, so I assume there must also be a way to make the Cisco phone put the current call on hold.

Please don’t misunderstand—I don’t want to put the RTP stream on hold via Asterisk.

2

Which firmware is the phone running, Enterprise or 3PCC/multprotocol. What is the model # of the phone?

3

Hi thanks for your response.

It is 3PCC/Multiplatform 8800 Series.