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- Use case#1: A secretary's phone shall display the call status of the boss's line, allowing the secretary to know whether the boss is on a phone call or not. This will enable the secretary to make the decision to put the new caller on hold or let them through to the boss.
- Use case#2: Call centers and customer support groups have also a need for BLF: it enables employees to see if their colleagues are free to take a support call or if their supervisor is on another line and unable to help another customer.
- Use case#3: BLF is needed by teams working on a specific project: supervisors can monitor team members' extensions and vice versa so all team members are aware of each other's current status.
Requirements
| # | Title / Requirement number | User story / functionality | Importance | Notes |
|---|---|---|---|---|
| 1 | BLF-XML-01-00 | On D8xx series, any PFK (physical or virtual programmable function key) can be assigned to the function BLF-XML. | Must Have |
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| 2 | BLF-XML-01-01 | The assignment shall be configured either manually via web user interface (WUI) and/or phone user interface (PUI), and automatically via auto-provisioning (HTTP/TFTP setting server), SRAPS, or remote management (TR-069). | Must Have | |
| 3 | BLF-XML-01-02 | If such SIP extension is configured on other Snom phones in the same SIP domain BLF shall work transparantly without the need of an IP PBX. | Must Have | |
| 4 | BLF-XML-02-01 | On D8xx series, during an active subscription, state changes of the monitored SIP extension shall be visualized on both, PFK LED and PFK icon & label. | Must Have | |
| 5 | BLF-XML-SUBS-02-02 | In case the notifier being an IP-PBX or another Snom phone: Idle state => PFK LED off, PFK label & icon "idle" | Must Have | |
| 6 | BLF-XML-02-03 | In case the notifier being an IP-PBX or another Snom phone: Ringing state => PFK LED blinking fast (colour?), PFK label & icon "ringing" | Must Have | |
| 7 | BLF-XML-02-04 | In case the notifier being an IP-PBX or another Snom phone: Busy state => PFK LED on (colour?), PFK label & icon "on a call" | Must Have | |
| 8 | BLF-XML-02-05 | In case the notifier being an IP-PBX: Hold state => PFK LED blinking slow (colour?), PFK label & icon "on hold" | Must Have | |
| 9 | BLF-XML-02-06 | In case the notifier being an IP-PBX: DND state => PFK LED on (colour?), PFK label & icon "DND on" | Must Have |
User interaction and design
| User interaction | Requirement reference | Design reference | ||||
|---|---|---|---|---|---|---|
| Monitored extension | Monitoring extension | State | Monitored extension | Monitoring extension | Figma | Screenshot |
| does nothing | does nothing | Idle | BLF-XML-SUBS-02-02 | Figma requirement (702 "idle") | ||
| lifts up the receiver | does nothing | Busy | ||||
Questions
Below is a list of questions to be addressed as a result of this requirements document:
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