Description

INVITE Requests without SDP should not change the state of the SDP. However, some servers can not handle this and need a sendrecv in the response whatever the previous state was. If on, the phone sends sendrecv in the response for INVITE Requests with no SDP.

If the value is switched to <hold>, the INVITE invite is still answered with sendrecv. What differs is that a holding state is automatically left and changed to connected, after receiving the ACK with sendrecv.


Web User Interface

Setup - Identity (x) - SIP (Tab) - SIP Identity Settings (Section) - Force sendrecv on INVITE with no SDP



Phone User Interface

N/A


Auto-provisioning

ParameterValid value

<sip_force_sendrecv_on_invite_wo_sdp idx="INDEX" perm="PERMISSIONFLAGS">VALIDVALUE</sip_force_sendrecv_on_invite_wo_sdp>

  • on
  • off
  • hold