ATL Telecom IP300S - Manual (Page 11)

IP SIP Phone v2 User’s Guide Mar. 2005
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2.1.3.
Back View
2.2. Keys
【 Keys 】： Function when in-call or idle | Function on menu mode
【 A / B Channel】 ： Call lines (2 concurrent calls at most) / Review the calling information on this
channel during conversation.
【 Service Realm】：Display the registration status of each active service domain on idle; switch
target service domain (ISP) while making calls.
RJ-11 Earphone Jack
RJ-11 Handset Jack
Wall mount
FUNC
MUTE
SPK/Hands-free
HOLD
SPD
XFER
REDIAL
MWI
Volume【
−,＋】
A/B Channel
Reject
FLASH
Service Realm