Supported VoIP Protocols

SonicWall security appliances support transformations for the following protocols.

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H.323
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SIP
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SonicWall VoIP Vendor Interoperability
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CODECs
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VoIP Protocols that SonicWall <product name> Does Not Perform Deep Packet Inspection on
H.323

SonicWall <product name> provides the following support for H.323:

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VoIP devices running all versions of H.323 (currently 1 through to 5) are supported
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Microsoft's LDAP-based Internet Locator Service (ILS)
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Discovery of the Gatekeeper by LAN H.323 terminals using multicast
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Stateful monitoring and processing of Gatekeeper registration, admission, and status (RAS) messages
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Support for H.323 terminals that use encryption for the media streams
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DHCP Option 150. The SonicWall DHCP Server can be configured to return the address of a VoIP specific TFTP server to DHCP clients
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In addition to H.323 support, SonicWall <product name> supports VoIP devices using the following additional ITU standards:
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T.120 for application sharing, electronic white-boarding, file exchange, and chat
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H.239 to allow multiple channels for delivering audio, video and data
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H.281 for Far End Camera Control (FECC)
SIP

SonicWall <product name> provides the following support for SIP:

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Base SIP standard (both RFC 2543 and RFC 3261)
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SIP INFO method (RFC 2976)
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Reliability of provisional responses in SIP (RFC 3262)
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SIP specific event notification (RFC 3265)
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SIP UPDATE method (RFC 3311)
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DHCP option for SIP servers (RFC 3361)
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SIP extension for instant messaging (RFC 3428)
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SIP REFER method (RFC 3515)
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Extension to SIP for symmetric response routing (RFC 3581)
SonicWall VoIP Vendor Interoperability

The following is a partial list of devices from leading manufacturers with which SonicWall VoIP interoperates.

 

Partial List of Devices with which SonicWall VoIP Interoperates

H.323

SIP

Soft-Phones:

Avaya

Microsoft NetMeeting

OpenPhone

PolyCom

SJLabs SJ Phone

Telephones/VideoPhones:

Avaya

Cisco

D-Link

PolyCom

Sony

Gatekeepers:

Cisco

OpenH323 Gatekeeper

Gateway:

Cisco

Soft-Phones:

Apple iChat

Avaya

Microsoft MSN Messenger

Nortel Multimedia PC Client

PingTel Instant Xpressa

PolyCom

Siemens SCS Client SJLabs

SJPhone

XTen X-Lite

Ubiquity SIP User Agent

Telephones/ATAs:

Avaya

Cisco

Grandstream BudgetOne

Mitel

Packet8 ATA

PingTel Xpressa PolyCom

PolyCom

Pulver Innovations WiSIP

SoundPoint

SIP Proxies/Services:

Cisco SIP Proxy Server

Brekeke Software OnDo SIP Proxy

Packet8

Siemens SCS SIP Proxy

Vonage
CODECs

SonicWall <product name> supports media streams from any CODEC - Media streams carry audio and video signals that have been processed by a hardware/software CODEC (COder/DECoder) within the VoIP device. CODECs use coding and compression techniques to reduce the amount of data required to represent audio/video signals. Some examples of CODECs are:

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H.264, H.263, and H.261 for video
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MPEG4, G.711, G.722, G.723, G.728, G.729 for audio
VoIP Protocols that SonicWall <product name> Does Not Perform Deep Packet Inspection on

SonicWallSonicWall security appliances do not currently support deep packet inspection for the following protocols; therefore, these protocols should only be used in non-NAT environments.

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Proprietary extensions to H.323 or SIP
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MGCP
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Megaco/H.248
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Cisco Skinny Client Control Protocol (SCCP)
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IP-QSIG
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Proprietary protocols (Mitel’s MiNET, 3Com NBX, etc.)