Share Trunks by SLA
After setting up SLA stations on PBX and configuring BLF keys on IP phones, users can monitor SLA trunks, receive calls from SLA trunks, and make outbound calls through SLA trunks.
Make outbound calls
SLA station can monitor the status of SLA trunk according to BLF keys status.
- If the BLF key used to monitor SLA trunk turns green, it indicates that the
trunk is available, and the associated SLA station can make outbound calls
through this trunk.
To make outbound calls, the SLA station should press BLF key first, and dial the external number out after hearing a dial tone.
- If the BLF key used to monitor SLA trunk turns red, it indicates that the trunk is in use. Other SLA stations can not use the trunk to make outbound calls now.
Handle incoming calls
When an external call reaches the SLA trunk, all phones of associated SLA stations will ring, and BLF keys on phone devices will flash in red. Any SLA stations can answer the call by pressing BLF keys.
Barge-in an active call
If Allow Barge is enabled for an SLA trunk, other SLA stations are allowed to join an active call.
When an SLA station is in a call with other users using this SLA trunk, other SLA stations can join the active call by pressing the BLF key.
Hold and retrieve calls
- If Hold Access is set to Open, other stations that share the trunk can press BLF key to retrieve the call.
- If Hold Access is set to Private, the call can be retrieved only by the station that previously put the call on hold.