Tutorial on SIP and SIP SER server

Using a Radvision viaIP400 MCU (Cisco 3540) Ver 3.2

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Cisco rebadge the Radvision viaIP400 MCU as a Cisco 3540 and at some point will presumably Cisco will include providing the SIP license.

Reference

http://support.tlv.radvision.com/ViaIP/mcu/3.2/admin/en/wwhelp/wwhimpl/common/html/wwhelp.htm?context=MCU_v3_2_Online_Help&file=com_protocols_set_sip.html

Discussion

The following example is based on only a short period of investigation so although it works there are some areas that could do with some further investigation. See heading on "Further Work" below.

Radvision viaIP400 Configuration

Log in as an administrator using a web browser to http://a.b.c.d/admin

Enter MCU : Protocols : SIP

Note on "Use Registrar"

Using the example configuration below named "static SER routing to Radvision viaIP400", calls get routed to the MCU.regardless if this is enabled or not.

If enabled the MCU rill regsiter the name and each of the Conferences configured in MCU : Services.

 

SER Configuration

	# CALLS TO Radvision viaIP400 MCU version 3.2
    # has the E.164 number ranges 6126222350x 6126222350x 6126222351x 6126222352x
	# 6126222354x 6126222356x 6126222358x 6126222359x
    #
	# if (uri=~"^sip:612622235[0-2,4,6,8,9][0-9]@"){
	if (uri=~"^sip:61262223595@"){
		log(1, "SER: matched ^sip:612622235[0-2,4,6,8,9][0-9]@ - forward to MCU\n");
		rewritehost("203.22.212.248");
		t_relay();
		break;
	};

 

 

Further Work

Rather than using a static entry and a rewritehost as demonstrated above it should be possible to use the MCU registered E.164 numbers in SER and use the function lookup("location") to find the UA in the mysql database and route the call.

The above is NOT important if:

• there is only one MCU and it's ip address does not change, and
• the number range used for conferences does not change much either.

Otherwise a more dynamic registration process would be preferred.