Upgrade path
Keep the operating model stable while preparing the network for SIP.
Solutions
SIP Ready ISDN is for customers who need a practical bridge from legacy ISDN services toward modern SIP connectivity.
SIP Ready ISDN
SIP Ready ISDN is for customers who need a practical bridge from legacy ISDN services toward modern SIP connectivity.
What matters
Keep the operating model stable while preparing the network for SIP.
Plan around the service levels expected for business voice.
When the site is ready, remove legacy access from the design and move to SIP.
Related services