IMG 1010 - Vocoder Information
The IMG 1010 has two DSP chips which provide enough capability to handle all announcements, all call progress tones, and all call setup tones needed to perform our call load performance tests. Each codec uses a different amount of resources from the resource pool in the IMG 1010. Below are a few tables displaying the codecs supported, the profiles supported for each codec, and the amount of resources available for each profile.
The IMG 1004 has a single DSP chip which provides enough capability to handle all announcements, all call progress tones, and all call setup tones needed to perform our call load performance tests. Each codec uses a different amount of resources from the resource pool in the IMG 1004. Below are a tables displaying the codecs supported, the profiles that are supported for each codec, and the amount of resources available for each profile.
VoIP Resource Profiles:
Codecs supported by Profile number
Codec | Licensing Required | Profile 5 | Profile 6 | Profile 7 | Profile 8 |
|---|---|---|---|---|---|
G.711 alaw | No | Yes | Yes | Yes | Yes |
G.711 ulaw | No | Yes | Yes | Yes | Yes |
G.723 5.3 kbps | No | Yes | Yes | Yes | Yes |
G.723 6.3 kbps | No | Yes | Yes | Yes | Yes |
G.729 | No | Yes | Yes | Yes | Yes |
G.729E | No | Not Supported | Yes | Yes | Not Supported |
iLBC 20 ms | No | Not Supported | Yes | Yes | Not Supported |
iLBC 30 ms | No | Not Supported | Yes | Yes | Not Supported |
AMR | Yes | Not Supported | Not Supported | Yes | Yes |
EVRC | Yes | Not Supported | Not Supported | Yes | Not Supported |
GSM - FR Static | No | Not Supported | Yes | Yes | Yes |
GSM - FR Dynamic | No | Not Supported | Yes | Yes | Yes |
G.726-32/G.721 Static | No | Yes | Yes | Yes | Yes |
G.726-32/G.721 Dynamic | No | Yes | Yes | Yes | Yes |
Clear Channel Codec | No | Yes | Yes | Yes | Yes |
Codecs supported by protocol:
The IP Bearer Profile object is used to define a set of VoIP Parameters to be used in each individual SIP or H.323 Channel Group configured. When configuring the IP Bearer Profile object, ClientView allows the user to configure a list of vocoders/codecs that this channel group will support. These are termed vocoder entries. Attributes such as payload type and size (preferred, minimum, and maximum) are configured in the vocoder entry. When there are multiple vocoder entries configured under the IP Bearer Profile object the IMG will start with the topmost entry and work its way down the list until codec negotiation with the far end gateway is satisfied. The user can set the priority of each vocoder entry by moving the entry up in the list. See IMG 1010 - Changing Vocoder Order in an IP Profile for information on setting the priority. The table below displays on a very high level which codec is supported in either the SIP or H.323 protocol. For more in depth tables that display the codec supported by individual profile, see tables in next section below.
CODEC | SIP | H.323 |
|---|---|---|
G.711 alaw/ulaw | Yes | Yes |
G.723 5.3Kbps | Yes | Yes |
G.723 6.3Kbps | Yes | Yes |
G.729A, G.729A/B | Yes | Yes |
G.729E, G.729E/G | Yes | Not Supported |
T.38 | Yes | Yes |
iLBC 20 ms | Yes | Not Supported |
iLBC 30 ms | Yes | Not Supported |
AMR | Yes | Not Supported |
EVRC | Yes | Not Supported |
G.726-32/G.721 Static Payload | Yes | Not Supported |
G.726-32/G.721 Dynamic Payload | Yes | Not Supported |
GSM-FR Static Payload | Yes | Not Supported |
GSM-FR Dynamic Payload | Yes | Not Supported |
Clear Channel Codec | Yes | Not Supported |
Using the AMR-NB resource in connection with one or more Sangoma products mentioned herein does not grant the right to practice the AMR-NB standard. To seek a patent license agreement to practice the standard, contact the VoiceAge Corporation at http://www.voiceage.com/licensing.php
IP Port Density supported by combination of Codec and Profile Number
The next two tables display the number of IP ports or port density per profile for each codec supported on the IMG 1010 and/or IMG 1004. Note that each port can be used to connect with a subsequent port on the TDM leg. For a breakdown of IP to IP Transcoding sessions supported please see the information in the IMG 1010 - Transcoding topic.
Note: The individual profiles (Profile 5, Profile 6, etc) are configured on the IMG by setting either the parameter Host_1010_Flag on the IMG 1010 or the Host_1004_Flag on the IMG 1004. These parameters are located in the dhcpd.conf file in /etc. See IMG 1010 - Setting Host Flags link for more information on configuring IMG for a specific profile.
IMG 1004:
Supported Codecs | Profile 5 SRTP Off | Profile 5 SRTP On | Profile 6 SRTP Off | Profile 6 SRTP On | Profile 7 SRTP Off | Profile 7 SRTP On | Profile 8 SRTP Off | Profile 8 SRTP On |
|---|---|---|---|---|---|---|---|---|
G.711 a-law | 128 | 84 | 84 | 72 | 84 | 72 | 120 | 84 |
G.711 u-law | 128 | 84 | 84 | 72 | 84 | 72 | 120 | 84 |
G.723.1 5.3kbps | 128 | 84 | 84 | 72 | 84 | 72 | 120 | 84 |
G.723.1 6.3kbps | 128 | 84 | 84 | 72 | 84 | 72 | 120 | 84 |
G.726-32/G.721 | 128 | 84 | 84 | 72 | 84 | 72 | 120 | 84 |
G.729 a/b/e | 128(G.729e=*N/S) | 84(G.729e=*N/S) | 84 | 72 | 84 | 72 | 120(G.729e=*N/S) | 84(G.729e=*N/S) |
iLBC | *N/S | *N/S | 84 | 72 | 84 | 72 | *N/S | *N/S |
GSM-AMR | *N/S | *N/S | *N/S | *N/S | 84 | 72 | 120 | 84 |
GSM-FR | *N/S | *N/S | 84 | 72 | 84 | 72 | 120 | 84 |
EVRC | *N/S | *N/S | *N/S | *N/S | 84 | 72 | *N/S | *N/S |
Clear Channel | 128 | 84 | 84 | 72 | 84 | 72 | 120 | 84 |
*N/S = Not Supported
IMG 1010:
The numbers displayed in the table below is for an IMG 1010 with one VoIP module installed. If the IMG 1010 has only two VoIP Modules installed then the numbers displayed below will be doubled.
Supported Codecs | Profile 5 SRTP Off | Profile 5 SRTP On | Profile 6 SRTP Off | Profile 6 SRTP On | Profile 7 SRTP Off | Profile 7 SRTP On | Profile 8 SRTP Off | Profile 8 SRTP On |
|---|---|---|---|---|---|---|---|---|
G.711 a-law | 512 | 336 | 336 | 288 | 336 | 288 | 480 | 336 |
G.711 u-law | 512 | 336 | 336 | 288 | 336 | 288 | 480 | 336 |
G.723.1 5.3kbps | 512 | 336 | 336 | 288 | 336 | 288 | 480 | 336 |
G.723.1 6.3kbps | 512 | 336 | 336 | 288 | 336 | 288 | 480 | 336 |
G.726-32/G.721 | 512 | 336 | 336 | 288 | 336 | 288 | 480 | 336 |
G.729 a/b/e | 512(G.729e=*N/S) | 336(G.729e=*N/S) | 336 | 288 | 336 | 288 | 480(G.729e=*N/S) | 336(G.729e=*N/S) |
iLBC | *N/S | *N/S | 336 | 288 | 336 | 288 | *N/S | *N/S |
GSM-AMR | *N/S | *N/S | *N/S | *N/S | 336 | 288 | 480 | 336 |
GSM-FR | *N/S | *N/S | 336 | 288 | 336 | 288 | 480 | 336 |
EVRC | N/S | *N/S | *N/S | *N/S | 336 | 288 | *N/S | *N/S |
Clear Channel | 512 | 336 | 336 | 288 | 336 | 288 | 480 | 336 |
*N/S = Not Supported
Example 1:
The IMG 1004 is configured to use Profile 5, SRTP is disabled, and the codec being used is G.711 u-law. The maximum number of IP channels available 128.
Example 2:
The IMG 1010 is configured to use Profile 5, SRTP is disabled, and the codec being used is G.726-32. The maximum number of IP ports available is 1024.
Breakdown of Resources Supported by DSP Chip.
IMG 1010 Resources Supported by Profile Number (4 Chip Module Installed)
Profile Number | Resources Supported | Channels per DSP | Channels per Module |
|---|---|---|---|
PROFILE 5 | 512 Resources | 128 | 512 |
PROFILE 6 | 336 Resources | 84 | 336 |
PROFILE 7 | 336 Resources | 84 | 336 |
PROFILE 8 | 480 Resources | 120 | 480 |
IMG 1010 Resources supported by Profile Number (2 Chip VoIP Module Installed)
Profile Number | Resources Supported | Channels per DSP | Channels per Module |
|---|---|---|---|
PROFILE 5 | 256 Resources | 128 | 256 |
PROFILE 6 | 168 Resources | 84 | 168 |
PROFILE 7 | 168 Resources | 84 | 168 |
PROFILE 8 | 240 Resources | 42 | 84 |
IMG 1004 Resources Supported by Profile Number
IMG 1004 supports only 1 DSP chip which is embedded on the IMG 1004 Motherboard. See table below.
Profile Number | Resources Supported | Channels per DSP |
|---|---|---|
PROFILE 5 | 128 Resources | 128 |
PROFILE 6 | 84 Resources | 84 |
PROFILE 7 | 84 Resources | 84 |
PROFILE 8 | 120 Resources | 120 |
IMG 1010 Resources Supported by Profile Number with SRTP Enabled
Profile # | VoIP Module Resources (SRTP Enabled) | VoIP Module Resources (SRTP Disabled) |
|---|---|---|
Profile 5 | 336 Resources | 512 Resources |
Profile 6 | 288 Resources | 336 Resources |
Profile 7 | 288 Resources | 336 Resources |
Profile 8 | 336 Resources | 480 Resources |
Codec Payload Size:
The table below includes information on the payload sizes in milliseconds of the codecs supported by the IMG. The payload size can be changed in ClientView in increments of 10 ms.
For example:
G.723 5.3 kbps codec can have the payload size of 10,20,30,40,50, or 60
Table 3: Codecs supported and Min/Max/Preferred payload sizes
Payload Type/Codec | Preferred Payload Size | Minimum Payload Size | Maximum Payload Size |
|---|---|---|---|
AMR (SIP ONLY) | 20 ms | 20 ms | 20 ms |
EVRC (SIP ONLY) | 20 ms | 20 ms | 20 ms |
G.711 alaw | 20 ms | 10 ms | 30 ms |
G.711 ulaw | 20 ms | 10 ms | 30 ms |
G.723 5.3 kbps | 30 ms | 30 ms | 90 ms |
G.723 6.3 kbps | 30 ms | 30 ms | 90 ms |
G.729 | 20 ms | 10 ms | 60 ms |
G.729E/G (SIP ONLY)(10.3.2 ER2 and above) | 20 ms | 10 ms | 30 ms |
iLBC 20 ms | 20 ms | 20 ms | 20 ms |
iLBC 30 ms | 30 ms | 30 ms | 30 ms |
GSM-FR Static Payload Type | 20 ms | 20 ms | 60 ms |
GSM-FR Dynamic Payload Type | 20 ms | 20 ms | 60 ms |
G.726-32/G.721 Static Payload Type | 20 ms | 10 ms | 60 ms |
G.726-32/G.721 Dynamic Payload Type | 20 ms | 10 ms | 60 ms |
Clear Channel Codec | 20 ms | 10 ms | 30 ms |
Additional Information:
An IMG 1010 populated with Mindspeed VoIP modules does not support tone detection for any of the wireless codecs which includes the following:
AMR
EVRC
GSM-FR
GSM-EFR
Clear Channel
However, it is possible that an IMG with Mindspeed VoIP Module could pass a fax using wireless codecs to a Remote Gateway. In order for this to work, the Remote entity must send the IMG something to trigger it to switch to fax. Some examples would be:
Initiating T38 packets from their side -or-
Use the SIP REI (Re-Invite Message) process to update the T38 Port numbers so the signaling would drive the media layer to a fax state.