Cisco IP Telephony Troubleshooting Guide for Cisco CallManager Release 3.0(1)

Codec Types (Compression / Payload types)

The following table provides values and descriptions for codec types.

Codec Description

Codec

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

32

33

80

81

82

83

84

Cause Codes

Description

NonStandard

G711A-law 64k

G711A-law 56k

G711µ-law 64k

G711µ-law 56k

G722 64k

G722 56k

G722 48k

G7231

G728

G729

G729AnnexA

Is11172AudioCap

Is13818AudioCap

G729AnnexB

Data 64k

Data 56k

GSM

ActiveVoice

G726_32K

G726_24K

G726_16K

The following table provides a list of cause codes that may appear in the Cause fields.

Cause Code Descriptions

 

Cause Code

Description

 

0

No error

 

1

Unallocated (unassigned) number

 

2

No route to specified transit network (national use)

 

3

No route to destination

 

4

Send special information tone

 

5

Misdialed trunk prefix (national use)

 

6

Channel unacceptable

 

7

Call awarded and being delivered in an established channel

 

8

Preemption

 

9

Preemption - circuit reserved for reuse

 

16

Normal call clearing

 

17

User busy

 

18

No user responding

 

19

No answer from user (user alerted)

 

20

Subscriber absent

 

21

Call rejected

 

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Cisco Systems 30 VIP manual Codec Types Compression / Payload types, Codec Cause Codes Description

30 VIP specifications

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