Cisco Systems 30 VIP Cisco IP Telephony Troubleshooting Guide for Cisco CallManager Release 3.0(1) , 2000 Cisco Systems, Inc. 89 , The following table provides values and descriptions for codec types. , , The following table provides a list of cause codes that may appear in the Cause fields.

Codec Types (Compression / Payload types)

The following table provides values and descriptions for codec types.

Codec Description

1 NonStandard

2 G711A-law 64k

3 G711A-law 56k

4 G711µ-law 64k

5 G711µ-law 56k

6 G722 64k

7 G722 56k

8 G722 48k

9 G7231

10 G728

11 G729

12 G729AnnexA

13 Is11172AudioCap

14 Is13818AudioCap

15 G729AnnexB

32 Data 64k

33 Data 56k

80 GSM

81 ActiveVoice

82 G726_32K

83 G726_24K

84 G726_16K

Cause Codes

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