[Spce-user] Contact header too long?

Marco Teixeira admin at marcoteixeira.com
Thu Mar 23 14:04:54 EDT 2017

Hi list,

Trying to figure out a problem where calls incoming from peer get dropped
around 900 secs.
Peer vendor claiming the issue is, and I quote:

"(...) because the request-uri is >160 bytes. (...) The reason the
Request-URI is so long is due to the long contact header coming from -
Contact: <sip:ngcp-lb at
Please ask the customer to reduce the length of the ngcpct parameter coming
from their SIP server."

Has anyone ever came across this issue?
Is 160 bytes limits even on the SIP RFC?
How can i shorten or stop using ngcpct parameter in contact?

Apreciate your help,
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