Technical data

Internet Protocol (H.450) A-5
Appendix A: Networking Services
SBX IP Programming & Operations Guide
OPERATION / SETUP
To use CCBS
1. Dial a busy station another networking system.
2. Press [CALLBK].
A confirmation tone sounds, and the call will be disconnected.
When the busy called station returns to Idle, the caller receives a call-back ring.
3. Answer the call-back ring to automatically redial the station that was busy.
Call Offer
Call Offer is the same as Camp-On (see page 1-39), except that the Call Offer is used in a
networking connection environment at the H.450 protocol standard specification.
When call to a busy station (located on another networking system) is dialed, the caller can
enable the Call Offer feature. Call Offer sends a tone to the busy station (through the receiver
or on speaker), and the [HOLD/SAVE] LED flashes to let the station user know that a call is
waiting.
CONDITIONS
• Call Offer
- can only be applied to a station that is in talk status.
- cannot be used during a conference or page.
• The SBX IP 320 System does not support the path reservation mode of a standard QSIG
specification.
ADMIN PROGRAMMING
Set Networking Basic Attribute
Use PGM 320 … see page A-22.
OPERATION / SETUP
To set Call Offer
1. Dial a busy station another networking system.
2. Press * (the Camp-On code), then wait for the busy station to respond.
The busy station receives an off-hook muted ring and the [HOLD/SAVE] LED flashes,
while the Calling station receives a ring-back tone instead of a busy-tone.
To answer a Call Offer
When the off-hook muted ring sounds, press the flashing CO line button.
The muted ring is changed to normal CO ring when the user goes on-hook to take the call.
Release 3.5
June 2010