23.md

0x23 Title Text: Telephone

Telephone 0xc8 → GT 0x3b
Telephone 0xc8 → MID 0xc0
Telephone 0xc8 → IKE 0x80
Telephone 0xc8 → Multicast: Displays 0xe7

Only BMBT (GT) usage is discussed!

Related

• 0x1b Check Control Priority
• 0x21 Menu Text: Telephone
• 0x24 Property Text: Telephone
• 0xa5 Body Text: Telephone

Example Frames

C8 11 3B 23 00 20 49 4E 53 45 52 54 20 43 41 52 44 21 E3
C8 05 3B 23 80 20 75 

Parameters

Length will vary with String.

Property	Index	Length	Type
Layout	0	1	Bitfield
Options	1	1	Bitfield
String	2	-1	String

---

Layout

# GT
DEFAULT             = 0x00      # "INSERT CARD!"
    
PIN_DIGITS          = 0x05
    
DIR_NAME            = 0x52      # "Jerry"
DIR_NUMBER          = 0x53      # "5551234"

DIAL_CLEAR          = 0x61
DIAL_NUMBER         = 0x63

TOP_8_CLEAR         = 0x80
TOP_8_NAME          = 0x81
TOP_8_NUMBER        = 0x82

SOS                 = 0xc0      # "SOS: 112!"

# IKE (Quick Contacts)
IKE_CLEAR           = 0x40
IKE_CLEAR_RT        = 0x41
IKE_NAME            = 0x42      # "TEL1-Jerry"
IKE_NUMBER          = 0x43      # "TEL1-5551234"
                                # "TEL    5551234"

# ANZV (Call Status)
ON_CALL             = 0x01      # "\xC6\xC7"
ON_CALL_HFS         = 0x02      # "\xC6"

---

Options

UPDATE  = 0x20
SET     = 0x30

---

String

Code Point	Name	Description
0xc6	Handsfree
0xc7	On Call (Left)
0xc8	On Call (Right)

Use Cases

Call Status Indicators

Call

C8 07 E7 23 01 00 "C7 C8" 05    # Start Call
C8 07 E7 23 01 00 "20 20" 0A    # End Call

Handsfree

C8 07 E7 23 02 00 "C6" 05   # HFS On
C8 06 E7 23 02 00 "20" 28   # HFS Off

---

Quick Contacts

Directory

# Quick Name
C0 <LEN> 80 23 42 20 "TEL1-Jerry" <CS>

# Quick Number
C0 <LEN> 80 23 43 20 "TEL1-5551234" <CS>

Dial

# Clear: End Call
C0 <LEN> 80 23 40 20 "" <CS>

# Dial Contact
C0 <LEN> 80 23 43 20 "TEL     5551234" <CS>

Exit

# Clear: R/T Radio Mode
C0 <LEN> 80 23 41 20 "" <CS>

---

Given that several commands are associated with each use case, they're discussed in their own respective documentation.

Dial

Telephone: Dial

Last Numbers

Telephone: Last Numbers

Directory

Telephone: Directory

Top 8

Telephone: Top 8

Default

Telephone: Default

PIN

Telephone: PIN