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Call negotiation, Inbound call – Dialogic 6.2 User Manual

Page 261

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Using Third Party IP Stacks

November 2009

261

# Specify an IP mask such as 255.255.255.0

ip_netmask=0.0.0.0

# Specify an IP address such as 192.168.0.1

ip_gateway=0.0.0.0

ip_broadcast=0.0.0.0

ethernet_speed=auto

ip_arp_timeout=10

Call Negotiation

Inbound Call

The following section uses SIP to demonstrate the interaction

between the third party stack in the application and the Bfv API for

negotiating RTP and T.38 for an inbound call.

Systems that will perform RTP can generate the CED tone and avoid

setting the RTP on the Bfv. If this is the case, applications can skip

calling BfvCallSWConnectIP(FullDuplex RTP) and

BfvTonePlayBeep() CED.

If both RTP and T.38 are done with the Bfv API, some ICMP errors

may appear as the port is switched from RTP to T.38. To avoid the

ICMP errors use unique ports for RTP and T.38.